WO2004039915A1 - 酸窒化物蛍光体及びその製造方法並びにその酸窒化物蛍光体を用いた発光装置 - Google Patents
酸窒化物蛍光体及びその製造方法並びにその酸窒化物蛍光体を用いた発光装置 Download PDFInfo
- Publication number
- WO2004039915A1 WO2004039915A1 PCT/JP2003/013157 JP0313157W WO2004039915A1 WO 2004039915 A1 WO2004039915 A1 WO 2004039915A1 JP 0313157 W JP0313157 W JP 0313157W WO 2004039915 A1 WO2004039915 A1 WO 2004039915A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light
- light emitting
- phosphor
- oxynitride phosphor
- oxynitride
- Prior art date
Links
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims abstract description 623
- 238000004519 manufacturing process Methods 0.000 title claims description 55
- 230000005284 excitation Effects 0.000 claims abstract description 115
- 239000012190 activator Substances 0.000 claims abstract description 63
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 35
- 239000013078 crystal Substances 0.000 claims abstract description 34
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 31
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 26
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 21
- 229910052732 germanium Inorganic materials 0.000 claims abstract description 20
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 18
- 229910052788 barium Inorganic materials 0.000 claims abstract description 17
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 15
- 229910021480 group 4 element Inorganic materials 0.000 claims abstract description 14
- 229910052718 tin Inorganic materials 0.000 claims abstract description 14
- 229910052712 strontium Inorganic materials 0.000 claims abstract description 13
- 229910052735 hafnium Inorganic materials 0.000 claims abstract description 12
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 12
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 9
- 229910052790 beryllium Inorganic materials 0.000 claims abstract description 8
- 150000004767 nitrides Chemical class 0.000 claims description 128
- 239000000203 mixture Substances 0.000 claims description 93
- 239000002994 raw material Substances 0.000 claims description 86
- 238000000295 emission spectrum Methods 0.000 claims description 77
- 238000002156 mixing Methods 0.000 claims description 74
- 239000004065 semiconductor Substances 0.000 claims description 70
- 238000009877 rendering Methods 0.000 claims description 51
- 239000000463 material Substances 0.000 claims description 47
- 238000000034 method Methods 0.000 claims description 45
- 239000000126 substance Substances 0.000 claims description 40
- 150000001875 compounds Chemical class 0.000 claims description 37
- 229910052693 Europium Inorganic materials 0.000 claims description 31
- 238000001228 spectrum Methods 0.000 claims description 30
- 229910052796 boron Inorganic materials 0.000 claims description 28
- 229910052757 nitrogen Inorganic materials 0.000 claims description 26
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 22
- 239000003795 chemical substances by application Substances 0.000 claims description 20
- 229910052760 oxygen Inorganic materials 0.000 claims description 17
- 229910052717 sulfur Inorganic materials 0.000 claims description 16
- 229910052782 aluminium Inorganic materials 0.000 claims description 13
- 229910052733 gallium Inorganic materials 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 11
- 229910052740 iodine Inorganic materials 0.000 claims description 9
- 239000002253 acid Substances 0.000 claims description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 230000004913 activation Effects 0.000 claims description 4
- 239000004615 ingredient Substances 0.000 claims description 2
- 238000004020 luminiscence type Methods 0.000 claims description 2
- 238000010411 cooking Methods 0.000 claims 1
- 229910052738 indium Inorganic materials 0.000 claims 1
- 150000002910 rare earth metals Chemical class 0.000 abstract description 2
- 235000019646 color tone Nutrition 0.000 description 94
- 238000010586 diagram Methods 0.000 description 79
- 235000019557 luminance Nutrition 0.000 description 73
- -1 oxy nitride Chemical class 0.000 description 51
- 230000008859 change Effects 0.000 description 42
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 38
- 239000000758 substrate Substances 0.000 description 38
- 239000011777 magnesium Substances 0.000 description 36
- 238000000576 coating method Methods 0.000 description 34
- 239000002245 particle Substances 0.000 description 33
- 239000011248 coating agent Substances 0.000 description 32
- 238000006243 chemical reaction Methods 0.000 description 31
- 239000011230 binding agent Substances 0.000 description 28
- 230000001965 increasing effect Effects 0.000 description 27
- 239000012298 atmosphere Substances 0.000 description 26
- 239000003086 colorant Substances 0.000 description 26
- 238000013329 compounding Methods 0.000 description 25
- 238000000695 excitation spectrum Methods 0.000 description 25
- 229910002601 GaN Inorganic materials 0.000 description 22
- 238000010304 firing Methods 0.000 description 22
- 239000000843 powder Substances 0.000 description 21
- 229910052688 Gadolinium Inorganic materials 0.000 description 19
- 229910021529 ammonia Inorganic materials 0.000 description 18
- 229910052751 metal Inorganic materials 0.000 description 18
- 239000002184 metal Substances 0.000 description 18
- 229910052594 sapphire Inorganic materials 0.000 description 18
- 239000010980 sapphire Substances 0.000 description 18
- 229920005989 resin Polymers 0.000 description 17
- 239000011347 resin Substances 0.000 description 17
- 239000012299 nitrogen atmosphere Substances 0.000 description 16
- 239000011521 glass Substances 0.000 description 14
- 229910052727 yttrium Inorganic materials 0.000 description 14
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 13
- 238000002441 X-ray diffraction Methods 0.000 description 13
- 229910052737 gold Inorganic materials 0.000 description 12
- 239000010931 gold Substances 0.000 description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 11
- 239000010408 film Substances 0.000 description 11
- 229910052582 BN Inorganic materials 0.000 description 10
- 239000010949 copper Substances 0.000 description 10
- 229910052708 sodium Inorganic materials 0.000 description 10
- 239000002585 base Substances 0.000 description 9
- 239000000919 ceramic Substances 0.000 description 9
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 9
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 9
- 229910052700 potassium Inorganic materials 0.000 description 9
- 239000002002 slurry Substances 0.000 description 9
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 8
- 230000004888 barrier function Effects 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 8
- 239000000470 constituent Substances 0.000 description 8
- 229910052802 copper Inorganic materials 0.000 description 8
- 238000000227 grinding Methods 0.000 description 8
- 150000002739 metals Chemical class 0.000 description 8
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 8
- 238000004088 simulation Methods 0.000 description 8
- 239000010936 titanium Substances 0.000 description 8
- 230000007423 decrease Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 239000003822 epoxy resin Substances 0.000 description 7
- 229910052747 lanthanoid Inorganic materials 0.000 description 7
- 150000002602 lanthanoids Chemical group 0.000 description 7
- 229920000647 polyepoxide Polymers 0.000 description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 229910052581 Si3N4 Inorganic materials 0.000 description 6
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 229910052739 hydrogen Inorganic materials 0.000 description 6
- 239000012535 impurity Substances 0.000 description 6
- 229910052744 lithium Inorganic materials 0.000 description 6
- 229910052748 manganese Inorganic materials 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 150000003839 salts Chemical class 0.000 description 6
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 6
- 238000005303 weighing Methods 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 150000003949 imides Chemical class 0.000 description 5
- 239000000377 silicon dioxide Substances 0.000 description 5
- 229910052814 silicon oxide Inorganic materials 0.000 description 5
- 229910052709 silver Inorganic materials 0.000 description 5
- 239000010409 thin film Substances 0.000 description 5
- 229910052684 Cerium Inorganic materials 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052692 Dysprosium Inorganic materials 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 229910052779 Neodymium Inorganic materials 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 230000003213 activating effect Effects 0.000 description 4
- 150000004645 aluminates Chemical class 0.000 description 4
- 150000001408 amides Chemical class 0.000 description 4
- 229910002113 barium titanate Inorganic materials 0.000 description 4
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 4
- 239000002019 doping agent Substances 0.000 description 4
- 238000005530 etching Methods 0.000 description 4
- 239000008187 granular material Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- SCPYDCQAZCOKTP-UHFFFAOYSA-N silanol Chemical compound [SiH3]O SCPYDCQAZCOKTP-UHFFFAOYSA-N 0.000 description 4
- 239000010944 silver (metal) Substances 0.000 description 4
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 4
- 229910052691 Erbium Inorganic materials 0.000 description 3
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 3
- 229910052689 Holmium Inorganic materials 0.000 description 3
- 229910052765 Lutetium Inorganic materials 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 3
- 229910052777 Praseodymium Inorganic materials 0.000 description 3
- 229910052772 Samarium Inorganic materials 0.000 description 3
- 229910052771 Terbium Inorganic materials 0.000 description 3
- 229910052775 Thulium Inorganic materials 0.000 description 3
- 229920001807 Urea-formaldehyde Polymers 0.000 description 3
- 229910052769 Ytterbium Inorganic materials 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- VRAIHTAYLFXSJJ-UHFFFAOYSA-N alumane Chemical compound [AlH3].[AlH3] VRAIHTAYLFXSJJ-UHFFFAOYSA-N 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 3
- 239000012300 argon atmosphere Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 229910052792 caesium Inorganic materials 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 239000010419 fine particle Substances 0.000 description 3
- 229910052736 halogen Inorganic materials 0.000 description 3
- 125000005842 heteroatom Chemical group 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 229910000833 kovar Inorganic materials 0.000 description 3
- 229910052746 lanthanum Inorganic materials 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 229910052702 rhenium Inorganic materials 0.000 description 3
- 229910052701 rubidium Inorganic materials 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 229920002050 silicone resin Polymers 0.000 description 3
- 229910052596 spinel Inorganic materials 0.000 description 3
- 239000011029 spinel Substances 0.000 description 3
- 229920001187 thermosetting polymer Polymers 0.000 description 3
- 229910052723 transition metal Inorganic materials 0.000 description 3
- HMUNWXXNJPVALC-UHFFFAOYSA-N 1-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)N1CCN(CC1)C(CN1CC2=C(CC1)NN=N2)=O HMUNWXXNJPVALC-UHFFFAOYSA-N 0.000 description 2
- IHCCLXNEEPMSIO-UHFFFAOYSA-N 2-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperidin-1-yl]-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C1CCN(CC1)CC(=O)N1CC2=C(CC1)NN=N2 IHCCLXNEEPMSIO-UHFFFAOYSA-N 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- NEAPKZHDYMQZCB-UHFFFAOYSA-N N-[2-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]ethyl]-2-oxo-3H-1,3-benzoxazole-6-carboxamide Chemical compound C1CN(CCN1CCNC(=O)C2=CC3=C(C=C2)NC(=O)O3)C4=CN=C(N=C4)NC5CC6=CC=CC=C6C5 NEAPKZHDYMQZCB-UHFFFAOYSA-N 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 229910006360 Si—O—N Inorganic materials 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000011147 inorganic material Substances 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000004611 light stabiliser Substances 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000005121 nitriding Methods 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 238000001020 plasma etching Methods 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000003980 solgel method Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 238000012916 structural analysis Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- SXAMGRAIZSSWIH-UHFFFAOYSA-N 2-[3-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]-1,2,4-oxadiazol-5-yl]-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C1=NOC(=N1)CC(=O)N1CC2=C(CC1)NN=N2 SXAMGRAIZSSWIH-UHFFFAOYSA-N 0.000 description 1
- VPSXHKGJZJCWLV-UHFFFAOYSA-N 2-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]-3-(1-ethylpiperidin-4-yl)oxypyrazol-1-yl]-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C=1C(=NN(C=1)CC(=O)N1CC2=C(CC1)NN=N2)OC1CCN(CC1)CC VPSXHKGJZJCWLV-UHFFFAOYSA-N 0.000 description 1
- ZRPAUEVGEGEPFQ-UHFFFAOYSA-N 2-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]pyrazol-1-yl]-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C=1C=NN(C=1)CC(=O)N1CC2=C(CC1)NN=N2 ZRPAUEVGEGEPFQ-UHFFFAOYSA-N 0.000 description 1
- 229910017982 Ag—Si Inorganic materials 0.000 description 1
- 229910002704 AlGaN Inorganic materials 0.000 description 1
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 229910016066 BaSi Inorganic materials 0.000 description 1
- 230000005457 Black-body radiation Effects 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- 240000002329 Inga feuillei Species 0.000 description 1
- 241000254158 Lampyridae Species 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 229910019018 Mg 2 Si Inorganic materials 0.000 description 1
- 229910020068 MgAl Inorganic materials 0.000 description 1
- 244000273256 Phragmites communis Species 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229910007991 Si-N Inorganic materials 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910006294 Si—N Inorganic materials 0.000 description 1
- 235000005811 Viola adunca Nutrition 0.000 description 1
- 240000009038 Viola odorata Species 0.000 description 1
- 235000013487 Viola odorata Nutrition 0.000 description 1
- 235000002254 Viola papilionacea Nutrition 0.000 description 1
- 229910000316 alkaline earth metal phosphate Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- RNQKDQAVIXDKAG-UHFFFAOYSA-N aluminum gallium Chemical compound [Al].[Ga] RNQKDQAVIXDKAG-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 229910052586 apatite Inorganic materials 0.000 description 1
- NWAIGJYBQQYSPW-UHFFFAOYSA-N azanylidyneindigane Chemical compound [In]#N NWAIGJYBQQYSPW-UHFFFAOYSA-N 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 125000000058 cyclopentadienyl group Chemical group C1(=CC=CC1)* 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 235000011180 diphosphates Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- ZSWFCLXCOIISFI-UHFFFAOYSA-N endo-cyclopentadiene Natural products C1C=CC=C1 ZSWFCLXCOIISFI-UHFFFAOYSA-N 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 238000002248 hydride vapour-phase epitaxy Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 229910003465 moissanite Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- VSIIXMUUUJUKCM-UHFFFAOYSA-D pentacalcium;fluoride;triphosphate Chemical compound [F-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O VSIIXMUUUJUKCM-UHFFFAOYSA-D 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 238000005375 photometry Methods 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- SBIBMFFZSBJNJF-UHFFFAOYSA-N selenium;zinc Chemical compound [Se]=[Zn] SBIBMFFZSBJNJF-UHFFFAOYSA-N 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 150000003463 sulfur Chemical class 0.000 description 1
- 229910052714 tellurium Inorganic materials 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 239000012856 weighed raw material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc oxide Inorganic materials [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/0883—Arsenides; Nitrides; Phosphides
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/66—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing germanium, tin or lead
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/59—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing silicon
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
- C09K11/7728—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing europium
- C09K11/77347—Silicon Nitrides or Silicon Oxynitrides
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/44—Structure, shape, material or disposition of the wire connectors prior to the connecting process
- H01L2224/45—Structure, shape, material or disposition of the wire connectors prior to the connecting process of an individual wire connector
- H01L2224/45001—Core members of the connector
- H01L2224/45099—Material
- H01L2224/451—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof
- H01L2224/45117—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof the principal constituent melting at a temperature of greater than or equal to 400°C and less than 950°C
- H01L2224/45124—Aluminium (Al) as principal constituent
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/44—Structure, shape, material or disposition of the wire connectors prior to the connecting process
- H01L2224/45—Structure, shape, material or disposition of the wire connectors prior to the connecting process of an individual wire connector
- H01L2224/45001—Core members of the connector
- H01L2224/45099—Material
- H01L2224/451—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof
- H01L2224/45138—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof the principal constituent melting at a temperature of greater than or equal to 950°C and less than 1550°C
- H01L2224/45139—Silver (Ag) as principal constituent
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/44—Structure, shape, material or disposition of the wire connectors prior to the connecting process
- H01L2224/45—Structure, shape, material or disposition of the wire connectors prior to the connecting process of an individual wire connector
- H01L2224/45001—Core members of the connector
- H01L2224/45099—Material
- H01L2224/451—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof
- H01L2224/45138—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof the principal constituent melting at a temperature of greater than or equal to 950°C and less than 1550°C
- H01L2224/45144—Gold (Au) as principal constituent
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/44—Structure, shape, material or disposition of the wire connectors prior to the connecting process
- H01L2224/45—Structure, shape, material or disposition of the wire connectors prior to the connecting process of an individual wire connector
- H01L2224/45001—Core members of the connector
- H01L2224/45099—Material
- H01L2224/451—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof
- H01L2224/45138—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof the principal constituent melting at a temperature of greater than or equal to 950°C and less than 1550°C
- H01L2224/45147—Copper (Cu) as principal constituent
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/44—Structure, shape, material or disposition of the wire connectors prior to the connecting process
- H01L2224/45—Structure, shape, material or disposition of the wire connectors prior to the connecting process of an individual wire connector
- H01L2224/45001—Core members of the connector
- H01L2224/45099—Material
- H01L2224/451—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof
- H01L2224/45163—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof the principal constituent melting at a temperature of greater than 1550°C
- H01L2224/45169—Platinum (Pt) as principal constituent
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/4805—Shape
- H01L2224/4809—Loop shape
- H01L2224/48091—Arched
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/481—Disposition
- H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/48221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/48245—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
- H01L2224/48247—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic connecting the wire to a bond pad of the item
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/481—Disposition
- H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/48221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/48245—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
- H01L2224/48257—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic connecting the wire to a die pad of the item
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/484—Connecting portions
- H01L2224/48463—Connecting portions the connecting portion on the bonding area of the semiconductor or solid-state body being a ball bond
- H01L2224/48464—Connecting portions the connecting portion on the bonding area of the semiconductor or solid-state body being a ball bond the other connecting portion not on the bonding area also being a ball bond, i.e. ball-to-ball
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/49—Structure, shape, material or disposition of the wire connectors after the connecting process of a plurality of wire connectors
- H01L2224/491—Disposition
- H01L2224/49105—Connecting at different heights
- H01L2224/49107—Connecting at different heights on the semiconductor or solid-state body
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/73—Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
- H01L2224/732—Location after the connecting process
- H01L2224/73251—Location after the connecting process on different surfaces
- H01L2224/73265—Layer and wire connectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/00014—Technical content checked by a classifier the subject-matter covered by the group, the symbol of which is combined with the symbol of this group, being disclosed without further technical details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/10—Details of semiconductor or other solid state devices to be connected
- H01L2924/11—Device type
- H01L2924/12—Passive devices, e.g. 2 terminal devices
- H01L2924/1203—Rectifying Diode
- H01L2924/12032—Schottky diode
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
- H01L2924/181—Encapsulation
-
- H01L33/502—
Definitions
- Oxynitride phosphor method of manufacturing the same, and light emitting device using the oxynitride phosphor
- the present invention relates to a phosphor that emits light by being excited by light, electromagnetic waves such as X-rays, electron beams, heat, etc.
- electromagnetic waves such as X-rays, electron beams, heat, etc.
- general lighting such as a fluorescent lamp, car lighting, backlight for liquid crystal, bright
- the present invention relates to a light emitting device such as a display.
- the present invention relates to white and multicolor light emitting devices using semiconductor light emitting elements.
- a light emitting device using a light emitting element is small in size, has high power efficiency, and emits bright color.
- the optical device is a semiconductor device, there is no concern such as a broken ball. Furthermore, it has excellent initial drive characteristics and is resistant to vibration and on / off lighting. Because of these excellent characteristics, light emitting devices using semiconductor light emitting elements such as LEDs and LDs are used as various light sources.
- white-based light-emitting devices are required in a wide range of fields such as illuminations such as fluorescent lamps, in-vehicle lighting, displays, and backlights for liquid crystals.
- illuminations such as fluorescent lamps, in-vehicle lighting, displays, and backlights for liquid crystals.
- light emitting devices of various colors such as pastel colors are required by combining semiconductor light emitting elements and phosphors.
- the emission color of a light emitting device using a white semiconductor light emitting element can be obtained by the principle of color mixture of light.
- the blue light emitted from the light emitting element is emitted into the phosphor layer, and after being repeatedly absorbed and scattered several times in the layer, is emitted to the outside.
- blue light absorbed by the phosphor acts as an excitation light source and emits yellow fluorescence.
- the yellow and blue lights are mixed and appear as white to the human eye.
- a blue light emitting element is used as a light emitting element, and the blue light emitting element surface is The body is lightly coded.
- the light emitting element is a blue light emitting element using an InGaN based material.
- the phosphor, (Y, G d) 3 (A 1, G a) 5 ⁇ 1 2: Y AG based phosphor represented by a composition formula of C e are used.
- a white light emitting device provided with a blue light emitting element and a YAG phosphor emits white light by mixing blue light in the vicinity of 460 nm and yellow green light in the vicinity of 565 nm.
- the emission intensity near 500 nm is insufficient.
- a white light emitting device has been reported by using a light emitting element in the short wavelength side region of visible light and combining a phosphor emitting blue light with a YAG phosphor emitting yellow light.
- the YAG-based phosphor that emits yellow light is hardly excited by light in the short wavelength region of visible light, and does not emit light. Therefore, the blue phosphor is excited by the light emitting element to emit blue light.
- the YAG-based phosphor is excited by the blue-based light to cause yellow-based light emission.
- the white light is emitted by mixing the blue light of the blue phosphor and the yellow light of the Y AG phosphor.
- Various phosphors used for the light emitting device have been developed.
- oxide-based phosphors using a rare earth element as a luminescent center are conventionally widely known, and some of them have been put to practical use.
- nitride phosphors and oxynitride phosphors have not been studied very much, and only a few research reports have been made compared to oxide phosphors.
- Patent Document 2 Japanese Patent Application Laid-Open No. 20 02-7 6 34 3
- Gazette hereinafter referred to as Patent Document 2.
- Patent Documents 1 and 2 have low luminance and are insufficient for use in a light emitting apparatus.
- a phosphor of oxy nitride glass is a glass body, it is difficult to process into one. Disclosure of the invention
- the present invention provides a phosphor having a luminescent color from bluish green color to yellow color which is excited by an excitation light source in the ultraviolet to visible light region and wavelength converted, and a light emitting device using the same.
- the purpose is Another object of the present invention is to provide a light emitting device having high luminous efficiency and excellent reproducibility.
- Another object of the present invention is to provide a phosphor that can be easily adjusted in color tone and a light emitting device using the same.
- the first oxynitride phosphor according to the present invention comprises at least one selected from the group consisting of B e, M g, C a, S r, B a and Z n A certain Group II element, a Group IV element which is at least one selected from the group consisting of C, Si, Ge, Sn, Ti, Zr, and Hf, and a rare earth element which is an activator R It is characterized by comprising a crystal containing an element.
- the first oxynitride phosphor according to the present invention is a crystal in which elements are arranged in accordance with a certain rule, and has high emission luminance, and has excellent characteristics as a phosphor. . Further, by selecting the composition of the first oxynitride phosphor according to the present invention, a desired light emission spectrum can be realized in the blue-green to yellow region.
- oxynitride also referred to as “oxynitrogen nitride” refers to one having a structure in which nitrogen is incorporated into the oxide, and conventionally, amorphous oxynitride glass is known as a typical example. It was being done.
- the group II element is selected from the group consisting of C a, S r, B a and Z n B a
- the group IV element is required to have S i selected from the group consisting of C, S i, G e, S n, T i, Z r and H f 1
- the first oxynitride phosphor containing Ba, Si, and Eu has a light emitting spectrum having a light emitting peak from blue green to green, and has extremely high light emission efficiency and excellent temperature characteristics. Do.
- the composition contains O and N, and the weight ratio of the O to the N is such that N is in the range of 0.2 to 2.1 with respect to 1 of O.
- the second oxynitride phosphor according to the present invention is L x M Y O z N ( (2/3 ) ⁇ + (4/3) Y ⁇ ( 2/3 ) Z) ⁇ R, or ((2/3) X + (4/3) Y + T- (2/3) ⁇ ): R is
- M is a Group II element which is at least one selected from the group consisting of Be, Mg, Ca, Sr, Ba, and Zn.
- M is a Group IV element which is at least one selected from the group consisting of C, Si, Ge, Sn, Ti, Zr and Hi.
- Q is at least one or more elements selected from the group consisting of B, A and Ga, and I n.
- O is an oxygen element.
- N is a nitrogen element.
- R is a rare earth element. 0.5 ⁇ X ⁇ 1.5, 1.5 ⁇ Y ⁇ 2.5, 0 ⁇ ⁇ 0.5, 1.5 ⁇ ⁇ 2.5. It is characterized by being represented by the general formula of
- the second oxynitrite phosphor according to the present invention thus constituted contains a crystal in which elements are arrayed according to a certain rule at least in part, and light is efficiently emitted from the crystal. It emits light and has excellent light emission characteristics.
- the second oxynitrite fluorescent substance can reproduce stable characteristics because the light emitting part is not a glass body (amorphous) but a crystal, and manufacture and processing are easy.
- the crystal phase to be the light emitting part can be relatively easily formed, and a phosphor with good light emission efficiency can be provided. .
- the second oxynitrite phosphor according to the present invention is excited by light in a short wavelength side region of near ultraviolet to visible light, and has a light emission spectrum having a light emission peak in a blue green to yellow region. Do.
- this second oxynitride phosphor has the same or more stability than YAG-based phosphors.
- the second oxynitrite phosphor according to the present invention may be deficient in nitrogen, and in this case, the general formula is L x M Y O z N: R or L x M Y Q T O z N ⁇ ⁇ (0 1 3D 0 ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ )
- the crystallinity of the crystal phase improves, the light emission luminance increases.
- L is required to be B a selected from the group consisting of C a, S r, B a and Z n.
- M is a group II element which is at least one or more kinds, and M is essentially a Si selected from the group consisting of C, Si, Ge, Sn, Ti, Zr, and Hf. It is preferable that it is a group IV element which is at least one or more of them, and that the activator R includes Eu.
- the second oxynitride phosphor containing Ba, Si, and Eu has an emission spectrum having its emission peak from blue-green to green.
- the second oxynitride phosphor according to the present invention has a crystal (crystalline phase) at least partially, and the crystal is preferably 50% by weight or more, more preferably It is preferable that 80% by weight or more is contained. That is, the crystal phase is the main light emitting portion, and if the ratio of the crystal phase which is the light emitting portion is 50% by weight or more, light emission with high efficiency can be obtained. Thus, the more the crystal phase, the higher the light emission luminance. Also, if the proportion of crystalline phase is high, manufacture and processing become easy.
- the crystals According to the structural analysis of the first and second oxynitride phosphors of the present invention according to the X-ray diffraction pattern of the phosphor, the crystals have an orthorhombic unit cell, and an orthorhombic system. It is understood that it belongs to
- the rare earth element represented by R is preferably E u in order to obtain high luminous efficiency, and when E u and other rare earth elements are used, in order to obtain high luminous efficiency, 50% by weight or more, more preferably 70% by weight or more is E u preferable.
- the first and second oxynitride phosphors according to the present invention are excited by light from an excitation light source having a light emission peak wavelength at 4 90 nm or less, and a light emission peak on the longer wavelength side than the light emission peak wavelength. It has an emission spectrum with a wavelength. That is, the first and second oxynitride phosphors are efficiently excited by light having a light emission peak wavelength of 4 9 0 nm or less, and efficient light emission can be obtained.
- the excitation light source for exciting the first and second oxynitride fluorescent materials according to the present invention preferably has a light emission peak wavelength in 240 to 4 70 nm, more preferably 3 5 0 It is preferable to have an emission peak wavelength at ⁇ 410 nm.
- the first and second oxynitride phosphors are effectively excited by light from an excitation light source having a light emission peak wavelength at 350 nm or more, and further at 360 nm or more.
- first and second oxynitride phosphors include Ba, Si, and Eu,
- the excitation light source when the oxynitride phosphor contains Ba, Si, and Eu, as the excitation light source, one having an emission peak wavelength in 24 to 40 nm can be used. However, it is preferable to use an excitation light source having an emission peak wavelength at 3660 to 4800 nm. In particular, 3 8 0 to 4 2 0 ⁇ ⁇ or used in semiconductor light emitting devices
- an excitation light source of 4 50 to 4 70 nm.
- the emission spectrum of the first and second oxynitride phosphors according to the present invention can be set in the blue-green to yellow-red region.
- light is emitted using excitation light (for example, excitation light of a wavelength near 400 nm) in the short wavelength side region of near ultraviolet to visible light.
- excitation light for example, excitation light of a wavelength near 400 nm
- the first and second oxynitrite phosphors according to the present invention exhibit high luminous efficiency by the excitation light in the region although they hardly emit light.
- blue light is used as the excitation light source, it exhibits high luminous efficiency. '..
- a bluish green to yellowish red region is represented according to JIS Z 8110. Specifically, the bluish green to yellowish red region ranges from 4 8 5 to 6 10 nm Say
- the first and second oxynitride phosphors are such that the emission intensity of the 37 O nm light is higher than that of the 500 nm light so as to have a higher excitation spectrum.
- the light excited by the light in the ultraviolet region exhibits higher luminance than the light excited in the blue region.
- the use of a light emitting element in the ultraviolet region rather than the light emitting element in the blue region can constitute a light emitting device capable of exhibiting high luminous efficiency.
- the first and second oxynitride phosphors contain Ba, Si and Eu, an excitation spectrum having a higher intensity in the vicinity of 460 nm than in the vicinity of 350 nm.
- an excitation spectrum having a higher intensity in the vicinity of 460 nm than in the vicinity of 350 nm. can be made to As a result, using an excitation light source near 46 O nm can exhibit higher luminous efficiency than near 350 nm, and a light emitting device composed of a combination of a relatively short wavelength visible light emitting element can be configured.
- the first and second oxynitrite phosphors have two or more Group II elements selected from the group consisting of Be, Mg, Ca, Sr, Ba, and Zn. It is preferable that the light emission characteristics such as color tone, light emission luminance, quantum efficiency and the like can be changed, and desired light emission characteristics can be realized.
- the emission peak wavelength and the color tone can be set by the addition amount of the activator R.
- the first and second oxynitrite phosphors according to the present invention shift the emission peak wavelength to the short wavelength or the long wavelength side by controlling the addition amount of the activator R.
- the color tone can be adjusted.
- the emission peak wavelength and color tone are changed depending on the addition amount of the activator R, a part of the group II element contained in the oxynitride phosphor is replaced by the activator R.
- the amount of the activator R is a molar ratio with respect to the mixing amount of the group II element and the activation agent R (the mixing amount of the group II element and the activation agent R): (the activation It is preferable to adjust in the range of 1: 0.00.1 to 1: 0.8 of the amount of the agent R). By setting this range, the color tone can be changed while maintaining high emission luminance.
- the color tone X shifts to the right and the color tone y shifts to the lower direction. This makes it possible to change the color tone.
- a nitride of L (L is at least one selected from the group consisting of B e, Mg, Ca, S r, B a and Z n A group II element) and a nitride of M (where M is at least one selected from the group consisting of C, S i, Ge, Sn, T i, Z r and H f) ), An oxide of M, and an oxide of R (R is a rare earth element).
- L is at least one selected from the group consisting of B e, Mg, Ca, S r, B a and Z n A group II element
- M is at least one selected from the group consisting of C, S i, Ge, Sn, T i, Z r and H f
- R is a rare earth element
- L i, Na, K :, Rb, Cs, Mn, Re, Cu, Ag, Au can be used for the production process of the present production method or the host of the oxynitrified phosphor produced by the present production method.
- Etc. may be contained.
- the above L i, Na, K, etc. be 1000 p i> m or less with respect to the weight of the oxynitride phosphor. More preferably, it is preferably 100 ppm or less.
- Li, Na, K, etc. can adjust the light emission characteristics such as increasing the particle diameter or raising the light emission luminance, and sometimes the characteristics may be improved.
- These Li, Na, K, etc. may be contained in the raw material composition. This is because Li, Na, K, etc. are scattered in the firing step in the production process of the oxynitride phosphor, and are hardly contained in the composition.
- other elements may be included to the extent that they do not impair the characteristics.
- the nitride of L, the nitride of M, and the oxide of M are 0.5N L nitride 1.5, 0.5. It is preferable to adjust the molar ratio of 1.25 to 2.25 M oxide and 3.75 to 25 M oxide.
- At least a part of the raw material composed of the nitride of L is substituted by at least one of an acid of R and a nitride of R.
- the third oxynitride phosphor according to the present invention is an oxynitride phosphor produced by the method for producing an oxynitride phosphor.
- the first to third oxynitride phosphors according to the present invention are phosphors which are excited by light in the short wavelength side of near-ultraviolet to visible light and emit light in blue-green to yellowish regions. It has the technical significance that it can be provided and a light emitting device with extremely good luminous efficiency can be provided by combining with a suitable excitation light source.
- the oxynitride phosphor according to the present invention is It emits light due to excitation light in the short wavelength region of visible light, and exhibits high luminous efficiency.
- the short wavelength side region of ultraviolet to visible light is not particularly limited but is a region of 2 40 to 500 nm or less.
- the range of 2 9 0 to 4 7 0 n m is preferable. More preferably, it is in the range of 3 40 to 4 10 n m.
- the present invention it is possible to provide a crystalline oxynitride phosphor which is easy to manufacture and process. In addition, it is possible to provide an oxynitride phosphor having excellent stability and reproducibility. In addition, it is possible to provide a method for producing a novel oxynitride phosphor. Furthermore, the oxynitrite fluorescent substance containing Ba, Si, and Eu according to the present invention is a light that is excited by light in the short wavelength region of ultraviolet to visible light and emits light in the blue-green to green-based regions. An extremely efficient phosphor can be provided.
- the first light-emitting device is a light-emitting device comprising: an excitation light source; and a phosphor for wavelength-converting at least a part of light from the excitation light source, wherein the phosphor is blue It is characterized in that it contains an oxynitride phosphor having a light emission peak wavelength in a green to yellowish red region. According to this first light emitting device, it is possible to provide a light emitting device with high light emission efficiency.
- the second light-emitting device comprises: an excitation light source having a light emission wavelength in a short wavelength range of ultraviolet to visible light; and at least a part of light from the excitation light source to perform wavelength conversion.
- a light emitting device can be provided that emits light in the blue-purple to green region.
- the oxynitride phosphor is preferably any one of the first to third oxynitride phosphors according to the present invention. Yes.
- a light emitting device having a desired color tone and a different emission peak wavelength and color tone is provided. be able to.
- the first to third oxynitride phosphors are excited by an excitation light source of a short wavelength side region of ultraviolet or near ultraviolet to visible light, and light of the excitation light source Absorb part of The oxynitride phosphor excited by absorbing the light is
- the wavelength-converted light has an emission peak wavelength in a bluish green to yellowish region. That is, the first to third oxynitride phosphors absorb part of the light from the light emitting element, and have light having a light emission spectrum having a light emission peak wavelength in a bluish green to yellowish region. It emits light. In addition, the first to third oxynitride phosphors have high luminous efficiency, and can emit light by wavelength-converting the light from the light emitting element extremely efficiently.
- a light emitting device having an intermediate color between the emission color of the light emitting element and the emission color of the oxynitride phosphor is provided by mixing the light from the light emitting element and the light of the first to third oxynitride phosphors. It can also be done.
- the first to third oxynitride phosphors contain ⁇ and N, and the weight ratio of the O and the N is 1 to O, the N is 0.2 to 2 ⁇ 1. Is efficiently excited by a light emitting element such as near ultraviolet light.
- the excitation light source preferably has at least one light emission peak wavelength in a short wavelength side region of ultraviolet to visible light. This is because the emission efficiency of the phosphor can be increased by using the excitation light source in the range. In particular, it is possible to emit light at 2 It is preferable to use an excitation light source having a peak wavelength, and it is further preferable to use an excitation light source having an emission peak wavelength at 3 50 to 4 10.
- the excitation light source is preferably a light emitting element. That is, the light-emitting element is small in size, power efficient, and emits bright color.
- the light emitting element is a semiconductor element, there is no concern such as breakage of a sphere. Furthermore, it has excellent initial drive characteristics and is resistant to vibration and repeated on / off lighting. Therefore, in the present invention, it is preferable to combine the light emitting element with the oxynitrite fluorescent substance.
- the light emitting layer of the light emitting element preferably comprises a nitride semiconductor containing In.
- the light emitting element emits light having a light emission peak wavelength in the vicinity of 350 to 4 10 nm, and the light from the light emitting element efficiently excites the oxynitride phosphor, Indicate emission color.
- the oxynitride phosphor can emit light of high intensity by being excited by light in the vicinity of 350 to 4100 nm, so that a light emitting element in the wavelength range is suitable.
- the light emitting element can narrow the light emission spectrum width, it is possible to efficiently excite the oxynitride phosphor and to emit light substantially free from color tone change from the light emitting device. It will be possible.
- a second phosphor may be contained together with the oxynitride phosphor.
- the second phosphor wavelength-converts at least a part of the light from the excitation light source and the light from the oxynitride phosphor and has an emission peak wavelength in the visible light region. Is preferred.
- a light emitting device having an emission color in the visible light region by mixing the light from the excitation light source, the light of the oxynitride phosphor, and the light of the second phosphor. .
- the light emitting device configured in such a manner emits a desired emission color in a wavelength range from the emission color of the excitation light source to the emission color of the oxynitride phosphor or the emission color of the second phosphor. can do.
- the second phosphor has at least one or more emission peak wavelengths from the blue region to the green, yellow and red regions in order to realize a desired emission color (emission color as a light emitting device). May be included. In particular, it combines the green color of the oxynitrite phosphor excited by excitation light having a light emission peak wavelength in the short wavelength region of ultraviolet to visible light, and the blue and red three primary colors of the second phosphor. Depending on the various luminescent colors Can be realized. Alternatively, a light emitting device may be used which is a combination of two colors, such as green and red and green and yellow.
- the second phosphor is a lanthanoid such as Eu, an alkaline earth halogenapatite phosphor mainly activated by a transition metal element such as Mn, an alkaline earth metal phosphate halogen phosphor Alkali earth metal aluminate phosphor, earth alkaline earth acid salt, alkaline earth sulfide, alkaline earth thiogallate, alkaline earth silicon nitride, germanate, or Ce At least one selected from rare earth aluminates and rare earth silicates mainly activated by lanthanoid elements such as E, and organic and organic complexes mainly activated by lanthanoid elements such as Eu; It is preferably at least one.
- the second phosphor is not limited to the above, and phosphors that emit light of various colors can be used.
- the light emitting device including the second phosphor includes: at least two or more of a part of light from the excitation light source, light from the oxynitride phosphor, and light from the second phosphor.
- the above light is mixed and emitted.
- the emission color of the light emitting device can be adjusted, and a desired emission color can be emitted.
- the light emission color is a mixture of the light from the oxynitride phosphor and the light from the second phosphor. Since the light emission color is determined only by the phosphor, the adjustment of the light emission color is extremely easy.
- the force expressed as the second phosphor is not limited to only one type, and several types of phosphors may be included. By including several types of phosphors, more subtle chromaticity adjustments become possible. In particular, in the case of using a light emitting element with a short wavelength region of ultraviolet light or visible light, light from the light emitting element is less likely to be perceived by human eyes, so there is little color shift due to manufacturing variations. it can.
- the emission color of the light emitting device containing the second phosphor is from the emission peak wavelength of the excitation light source to the emission peak wavelength of the oxynitride phosphor or the emission peak wavelength of the second phosphor. It can be set to an intermediate color.
- the excitation light source is oxynitrid It has a light emitting spectrum on the shorter wavelength side than the compound phosphor or the second phosphor, and has high energy.
- a light emitting device including the second phosphor can emit light of emission color from the high energy region to the low energy region of the oxynitride phosphor and the second phosphor.
- the emission peak wavelength of the light emitting element shows emission colors from the emission peak wavelength of the light emitting element to the first emission peak wavelength of the oxynitride phosphor or the second emission peak wavelength of the second phosphor.
- the emission peak wavelength of the light emitting element is in the blue region
- the emission peak wavelength of the excited oxynitrite phosphor is in the green color
- the emission peak wavelength of the excited second phosphor is in the red color
- the light emission peak wavelength of the light emitting element is in the ultraviolet region
- the light emission peak wavelength of the excited oxynitride phosphor is green
- the light emission peak wavelengths of the second excited phosphor are yellow and red
- the second phosphor has two or more emission peak wavelengths, the emission peak wavelength of the excitation light source, the emission peak wavelength of the oxynitride phosphor, and the second phosphor. It is possible to realize a light emitting device that exhibits an emission color between two or more emission peak wavelengths.
- the second phosphor can be used not only in one kind but also in combination of two or more kinds. Recently, not only light-emitting devices that emit white light, but also light-emitting devices that emit light of various colors such as pastel colors are required.
- the desired color tone can be obtained by variously combining the oxynitride phosphor emitting green light, the phosphor emitting red light, and the phosphor emitting blue light.
- a light emitting device can be provided.
- the method of changing the type of phosphor but also the method of changing the compounding ratio of the phosphors to be combined, the method of changing the coating method of applying the phosphor to the excitation light source, Various colors can be realized by the method of adjusting the lighting time of the light source.
- the tuning device has a light emission spectrum having at least one of emission peak wavelengths of 430 to 500 nm and 500 to 73011111.
- emission peak wavelengths 430 to 500 nm and 500 to 73011111.
- the light emitting device uses the oxynitride phosphor which is excited by the light emitting element in the ultraviolet to visible light region and wavelength-converted, and can provide an excellent light emitting device. It has the technical significance of being able to The oxynitride phosphor is a stable, highly reproducible phosphor having high luminous efficiency. In addition, it has technical significance that it is possible to provide a light emitting device having a desired light emission color by combining the light emitting element, the oxy-nitride phosphor and the second phosphor.
- the relationship between the wavelength range of light and the color name of monochromatic light conforms to J I S Z 8110. Specifically, 380 to 455 nm is bluish purple, 455 to 4 85 nm is blue, 485 to 495 nm is bluish green, 495 to 548 nm is green, 548 to 573 nm is yellowish green, and 573 to 584 nm is yellow , 584 to 610 nm is yellowish red, and 610 to 780 nm is red.
- the second light emitting device is preferably a light emitting device having a light emitting spectrum having at least one light emitting peak wavelength in 360 to 485 nm, 485 to 548 nm, and 548 to 730 nm.
- blue light which is three primary colors, green light, red light and the like, it is possible to provide a light emitting device which emits light of a desired color.
- color rendition can be improved by combining the number of phosphors. This is because even if the light emission is of the same white color, there are yellowish white and bluish white.
- the second light emitting device is preferably a light emitting device having a light emitting spectrum having one or more light emission peak wavelengths in the range of 360 to 485 nm and 485 to 584 nm.
- a light emitting device having a light emitting spectrum having one or more light emission peak wavelengths in the range of 360 to 485 nm and 485 to 584 nm For example, by combining a blue light emitting element and a Y AG fluorescent substance, it is possible to obtain a light emitting device that emits white light, but the light near 500 nm is insufficient Ru. Therefore, a light emitting device excellent in color rendering can be provided by further containing an oxynitride fluorescent material emitting light in the vicinity of 500 nm in the light emitting device.
- the second light emitting device preferably has an average color rendering index (R a) of 80 or more.
- R a average color rendering index
- R 9 special color rendering
- the oxynitride phosphor exhibits a luminescent color in a bluish green to yellowish range.
- the composition ratio of the oxynitride phosphor it is possible to provide a light emitting device having excellent light emitting characteristics.
- the color tone can be changed by changing the compounding ratio of the activator R (especially E u).
- the Eu 3 incorporation ratio it is possible to provide an oxynitride phosphor having excellent light emission luminance and quantum efficiency. Therefore, the present invention has extremely important technical significance that the light emitting device as described above can be provided.
- the second light emitting device of the present invention for example, it is possible to provide a light emitting device that emits bright blue to green light. Furthermore, it is possible to manufacture a light emitting device in which the oxynitride phosphor, the YAG-based phosphor which is the second phosphor, and a blue light emitting element are combined. As a result, it is possible to provide a light emitting device with excellent luminous efficiency and excellent in color rendering that emits light of white color.
- the color rendering property is an improvement of the special color rendering index (R 9) which is particularly red.
- FIG. 1 is a view showing a shell-shaped light emitting device 1 according to a second embodiment of the present invention.
- FIG. 2A is a plan view showing a surface-mounted light emitting device according to a third embodiment of the present invention.
- FIG. 2B is a cross-sectional view of a surface-mounted light emitting device according to a third embodiment of the present invention.
- FIG. 4 shows that the oxynitride phosphors of Examples 1 to 5 were excited at EX-460 nm.
- FIG. 6 is a diagram showing a light emission spectrum of
- FIG. 5 is a diagram showing the excitation spectrum of the oxynitride phosphors of Examples 1 to 5.
- FIG. 6 is a view showing a reflection spectrum of the oxynitride phosphors of Examples 1 to 5.
- FIG. 7 is an SEM photograph of the oxynitride phosphor of Example 1.
- FIG. 12 is a diagram showing the excitation spectrum of the oxynitride phosphors of Examples 1 to 15.
- FIG. 13 is a diagram showing the reflection spectrum of the oxynitridation phosphors of Examples 1 to 15.
- FIG. 16 is a diagram showing the excitation spectrum of the oxynitride phosphors of Examples 10 and 16 to 20.
- FIG. 17 is a diagram showing the reflection spectrum of the oxynitride phosphors of Examples 10 and 16 to 20.
- FIG. 20 is a diagram showing the excitation spectrum of the oxynitride phosphors of Examples 2 to 2. is there.
- FIG. 21 is a view showing reflection spectra of the oxynitride phosphors of Examples 2 1 to 2.
- FIG. 22 is a schematic view showing an orthorhombic system.
- FIG. 23 is a view showing an X-ray diffraction pattern of the oxynitride phosphor of Example 25.
- FIG. 24 is a diagram showing an X-ray diffraction pattern of the oxynitride phosphor of Example 26.
- FIG. 25 is a diagram showing an X-ray diffraction pattern of the oxynitride phosphor of Example 27.
- FIG. 26 is a plan view showing a light emitting device according to the present invention.
- FIG. 27 is a cross-sectional view showing AA ′ of the light emitting element according to the present invention.
- FIG. 28 is a view showing a light emission spectrum of the light emitting device of Example 28 according to the present invention.
- FIG. 29 is a diagram showing chromaticity coordinates of the light emitting device of Example 28 according to the present invention.
- FIG. 30 is a diagram showing a light tuning apparatus of cap-type embodiment 30 according to the present invention.
- FIG. 31 is a process diagram showing a method of producing an oxynitride phosphor.
- FIG. 32 is a graph showing a change in light emission efficiency due to a change in the content of the activator R contained in the composition of the oxynitrite phosphor.
- FIG. 33 is a graph showing a change in light emission efficiency due to a change in content of activator R contained in the composition of the oxynitride phosphor.
- FIG. 34 is a C 1 I chromaticity diagram showing a change in color tone due to a change in the content of activator R contained in the composition of the oxynitride phosphor.
- Figure 35 is an expanded CIE color diagram of Figure 34.
- FIG. 38 is a diagram showing the normalized excitation spectrum of the oxynitride phosphor.
- FIG. 39 is a diagram showing the reflection spectrum of the oxynitride phosphor.
- Fig. 40A is an SEM photograph of the oxynitride phosphor of Example 36 taken at 1000 times
- Fig. 40B is a photograph of the oxynitride phosphor of Example 36
- FIG. 40C is a SEM photograph of the oxynitride phosphor of Example 36 taken at 1000 times magnification.
- FIG. 41 is a graph showing a change in light emission efficiency due to a change in the content of the activator R contained in the composition of the oxynitride fluorescent substance.
- FIG. 42 is a graph showing a change in light emission efficiency due to a change in the content of the activator R contained in the composition of the oxynitride phosphor.
- FIG. 43 is a C I E chromaticity diagram showing a change in color tone due to a change in the content of activator R contained in the composition of the oxynitride phosphor.
- Fig.44 is a CIE chromaticity diagram which expands Fig.43.
- FIG. 47 is a diagram showing a normalized excitation spectrum of an oxynitride phosphor.
- FIG. 48 is a view showing a reflection spectrum of the oxynitride phosphor.
- FIG. 49 is a graph showing the change in peak intensity due to the change in the content of activator R contained in the composition of the oxynitride phosphor.
- FIG. 50 is a graph showing a change in light emission efficiency due to a change in the content of activator R contained in the composition of the oxynitridous phosphor.
- FIG. 53 is a diagram showing the standardized excitation spectrum of the oxynitride phosphor.
- FIG. 54 is a diagram showing the reflection spectrum of the oxynitride phosphor.
- FIG. 57 is a diagram showing a normalized excitation spectrum of the oxynitride phosphor of Example 79.
- FIG. 58 is a view showing a reflection spectrum of the oxynitride phosphor of Example 79.
- Fig. 5 9A is an SEM photograph of the oxynitride phosphor of Example 9 taken at a magnification of 1000
- Fig. 5 9B is a photo of the oxynitride phosphor of Example 7 9. S taken at 0 0 0x
- FIG. 60 is a view showing a light emission spectrum of the light emitting device 1 according to the present invention.
- FIG. 61 is a chromaticity diagram showing chromaticity coordinates of the light emitting device 1 according to the present invention.
- FIG. 62 is a process diagram showing a method of producing an oxynitride phosphor.
- FIG. 65 is a diagram showing the excitation spectrum of the oxynitride phosphors of Examples 83 to 87.
- FIG. 66 is a diagram showing a reflection spectrum of the oxynitride phosphors of Examples 83 to 87.
- FIGS. 6 7 A and 6 7 B are SEM photographs of the oxynitride phosphor of Example 83.
- FIG. FIG. 68 is a view showing a light emission spectrum (simulation) of the light emitting device of Example 88.
- FIG. 69 is a diagram showing the chromaticity coordinates (simulation) of the light emitting device of Examples 8 to 90.
- FIG. 68 is a view showing a light emission spectrum (simulation) of the light emitting device of Example 88.
- FIG. 69 is a diagram showing the chromaticity coordinates (simulation) of the light emitting device of Examples 8 to 90.
- FIG. 70 is a diagram showing emission spectra (simulation) of the light emitting devices of Examples 8 9 and 90.
- FIG. 7 1 is a view showing the light emission spectrum of the light emitting device of Example 9 1 and Example 9 2.
- the first embodiment relates to an oxynitride phosphor suitable for use in combination with a light emitting device, particularly a nitride semiconductor device, and the phosphor is excited by the light of the nitride semiconductor light emitting device.
- the light from the light emitting element generates light of a different wavelength.
- the oxynitride phosphor according to the first embodiment uses a rare earth element as an activator, and at least one selected from the group consisting of Be, Mg, Ca, Sr, Ba, and Zn.
- the oxynitride phosphor crystal is, for example, an oxynitride phosphor consisting of crystals belonging to orthorhombic crystals shown in Examples described later.
- the oxynitride phosphor of the preferred embodiment 1 has the general formula L x M Y O z N ( (2/3) ⁇ + (4
- L is at least one group II element which is at least one selected from the group consisting of Be, Mg, Ca, Sr, Ba, and Zn.
- M is at least one group IV element selected from the group consisting of C, Si, Ge, Sn, Ti, Zr, and Hf.
- Q is at least one group III element selected from the group consisting of B, Al, Ga, and I n.
- O is an oxygen element.
- N is a nitrogen element.
- R is a rare earth element. 0.5 X X 1.5, 1.5 ⁇ Y ⁇ 2.5, 0 ⁇ T ⁇ 0.5, 1.5 ⁇ M ⁇ 2.5.
- the oxynitride phosphor represented by this general formula can include a crystal in which elements are arrayed according to a certain rule at least in part, and light of high brightness is efficiently emitted from the crystal.
- the light emitting portion can be obtained by setting as follows: 0.5 ⁇ X ⁇ 1.5, 1.5 ⁇ Y2.5, 0 ⁇ T ⁇ 0.5, 1.5 ⁇ ⁇ 2.5 It is possible to form a crystal phase relatively easily, and to provide a phosphor with high luminous efficiency and high luminance.
- the proportion of crystals (crystalline phase) contained in the oxynitride phosphor of the first embodiment is preferably 50% by weight or more, more preferably 80% by weight or more.
- the proportion of the crystal contained When it is desired to set the proportion of the crystal contained to a desired value for the purpose of adjusting the light emission luminance etc., it can be adjusted by the values of X, ⁇ and ⁇ in the above general formula.
- the above range is a preferable range, and the present invention is not limited to the above range.
- 01 O 2 N 2 E u, S r G e 2 G a 0 0 2 N 2 : Eu, B a G e 2 In 0. 01 O 2 N 2 : E u, Z n G e 2 A 1 0. 05 O 2 N 2 : E u, a 0.5. 0 _ 5 O 2 B 0. 3 0 2 N 2 : Eu, C a S i 2. 5 O 5 N 3 : E u, S r S i 2. A. 5 N 3 : E i, B a S i 2. 5 5 N 3 : Eu , C a 0 5 B a 0 5 S i 2 5 N 3:...
- the oxynitrite fluorescent substance of the first embodiment can change the ratio of O to N, and by changing the ratio, the color tone or the brightness can be obtained. Can be adjusted. It is also possible to change the molar ratio of cation to anion shown by (L + M) / (O + N), which makes it possible to adjust the emission spectrum and intensity slightly. . This can be achieved, for example, by applying a treatment such as vacuum and desorbing N and O, but the present invention is not limited by this method. At least one or more of Li, Na, K, Rb, Cs, Mn, Re, Cu, Ag, and Au may be contained in the composition of the oxynitride phosphor, and these may be added. By doing this, it is possible to adjust the luminous efficiency such as luminance and quantum efficiency. In addition, other elements may be included to the extent that they do not impair the characteristics.
- a part of the Group I / I element contained in the oxynitride phosphor is replaced with an activator R.
- the amount of the activating agent R is (the mixing amount of the Group II element and the activating agent R): (the amount of the activating agent R) It is preferable that the molar ratio is 1: 0.01 to 1: 0.8.
- L is at least one or more elements selected from the group consisting of B e, Mg, Ca, S r, B a and Z n.
- L may be a single substance such as Ca, Sr, etc.
- a combination of a plurality of elements such as Ca and Sr, Ca and Ba, Sr and Ba, Ca and Mg, etc. It may be composed of
- the composition ratio can be changed.
- the mixture of S r and Ca can be changed in blending ratio as desired.
- L is a Group II element which is at least one or more elements which essentially comprises one of C a, S r and B a selected from the group consisting of Mg, Ca, S r, B a and Z n Is preferred.
- M is at least one group IV element selected from the group consisting of C, Si, Ge, S11, Ti, Zr, and Hf.
- M may be a single substance such as Si, Ge or the like, or may be a combination of a plurality of elements such as 1 and 06, Si and C, etc.
- the above-mentioned Group IV elements can be used, and in particular, Si, Ge are preferably used. By using Si and Ge, it is possible to provide inexpensive phosphors with good crystallinity.
- M is preferably at least one element of Group IV, which is at least one element selected from the group consisting of C, Si, Ge, Sn, Ti, and Hf.
- R is a rare earth element.
- R is one or more elements selected from La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu.
- Eu it is preferable to use Eu.
- R is contained in an amount of 50% by weight or more, more preferably 70% or more.
- the activator R is at least one of the elements consisting essentially of La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu. It is preferable that it is the rare earth element which is the above.
- An element other than Eu is to act as a co-activator.
- a rare earth element, Eu as a luminescent center
- Yumou Pium mainly has divalent and trivalent energy levels.
- the phosphor of the first embodiment is used with Eu 2+ as an activator for the host alkaline earth metal-based silicon nitride.
- Eu 2+ is easily oxidized and generally marketed in a composition of trivalent Eu 2 O 3 .
- the main components L and M can use their respective compounds.
- metals, oxides, imides, amides, nitrides and various salts can be used.
- elements of L and M as main components may be mixed in advance and used.
- Q is at least one group III element selected from the group consisting of B, Al, Ga, and I n.
- metals, oxides, imides, amides, nitrides and various salts can be used.
- nitride of L, nitride of M, and oxide of M as base materials.
- An oxide of Eu is mixed into the base material as an activator.
- nitrides of L, nitrides of M, and oxides of M of the host material are: 0.5 ⁇ 1: nitrides ⁇ 1.5, 0.25.5 M nitrides ⁇ 1
- the molar ratio of 75, 2.25 ⁇ M oxide or 3.75 be mixed. That is, these matrix materials can be obtained as L x M Y O z N ( (2/3) 2/3 + ⁇ — ( 2/3 ) ⁇
- the present invention is not limited to the following production method. First, prepare a nitride of Ca, a nitride of Si, an oxide of Si, and an oxide of Eu. As these raw materials, it is better to use purified ones, but commercially available ones may be used.
- the raw material C a may contain B, G a and the like.
- the raw material C a is powdered in a pot atmosphere under argon atmosphere.
- the C a obtained by grinding preferably has an average particle diameter of about 0.1 to 15 / m, but is not limited to this range.
- the purity of Ca is preferably 2 N or more, but is not limited thereto.
- the powdered original Ka is' nitrided in a nitrogen atmosphere.
- the nitride of C a can be obtained by nitriding powdered C a in a nitrogen atmosphere at 600 to 900 ° C. for about 5 hours. This reaction equation is shown in equation 1. (Expression 1)
- the nitride of C a is preferably of high purity.
- Commercially available Ca nitrides can also be used.
- the raw material S i As the raw material Si, it is preferable to use a single substance, but a nitride compound, an imide compound, an amide compound and the like can also be used. For example, Si 3 N 4 , Si (NH 2 ) 2 , Mg 2 Si, Ca 2 Si, Si C, and the like. The purity of Si of the raw material is preferably 3 N or more, but B, Ga, etc. may be contained. In the same manner as in the case of the raw material Ca, powdering is carried out in an argon atmosphere, or in a nitrogen atmosphere, in a glove box. The average particle size of the Si compound is preferably about 0.1 m to 15 ⁇ .
- the raw material Si is nitrided in a nitrogen atmosphere.
- the silicon nitride can be obtained by nitriding silicon Si in a nitrogen atmosphere at 800 to 1200 ° C. for about 5 hours. This reaction formula is shown in Formula 2.
- the silicon nitride used in the present invention is preferably of high purity.
- a commercially available product may be used as carbon nitride.
- S i 0 2 which is an acid compound of S i, is used (Wako Pure Chemical Industries, Silicon Dioxide 99.9% 190-09072).
- the raw materials (nitride of Ca, nitride of S S, oxide of Si, oxide of Eu) which has been purified or manufactured as described above are weighed to a predetermined molar amount.
- this composition is a representative composition estimated from the compounding ratio, and in the vicinity of the ratio, it has sufficient properties to withstand practical use.
- the composition of the target phosphor can be changed by changing the blending ratio of each raw material.
- the firing temperature is not particularly limited, but firing is preferably performed in the range of 1200 to 1700 ° C., and a firing temperature of 1400 to 1700 ° C. is more preferable.
- the raw material of the phosphor is preferably fired using a boat made of boron nitride (BN). In addition to boron nitride materials, alumina (Al 2 O 3 ) materials can also be used.
- the reducing atmosphere is a nitrogen atmosphere, a nitrogen-hydrogen atmosphere, an ammonia atmosphere, an inert gas atmosphere such as argon, or the like.
- An oxynitride phosphor represented by BC a S Z N: Eu can be produced as follows.
- the oxide of Eu, the compound H 3 B0 3 of B dry blending.
- a compound of Eu an aluminum oxide is used, but as with the other constituent elements described above, metals such as aluminum aluminum, aluminum nitride aluminum, etc. can also be used. Besides this, it is also possible to use imide compounds and amide compounds as the starting material Eu. It is preferable that the aluminum oxide be of high purity, but commercially available ones can also be used.
- the compound B is dry mixed, but may be wet mixed.
- Component elements other than B include L i, Na, K, etc., and these compounds, for example, L i ⁇ ⁇ H 2 0, Na 2 C 0 3 , K 2 CO 3 , Rb C 1, C s C 1, Mg (NO 3) 2 , C a C 1 2 ⁇ 6H 2 0, S r C 1 2 ⁇ 6H 2 ⁇ , B a C 1 2 ⁇ 2H 2 0, T i OS0 4 'H 2 0, Z rO (N0 3 ) 2 , H f C 1 4 , Mn 0 2 , R e C 1 5 , Cu (CH 3 COO) 2 ⁇ H 2 0, AgN 3 3 , HAuC 1 4 ⁇ 4H 2 0, Z n (NO 3 ) 2 * 6H 2 0, can be used Ge_ ⁇ 2, Sn (CH 3 COO) 2 or the like.
- the average particle size of the mixture of Eu and B after monument is preferably about 0.1 / im to 15 ⁇ .
- the above-mentioned Ca S i 2 0 2 N 2 much like the manufacturing process of Eu, nitride of C a, nitrides S i, oxides of S i, E containing B Mix u's oxide.
- baking is performed to obtain the target oxynitriding phosphor.
- the oxynitride phosphor according to the first embodiment described above has a stability equal to or higher than that of the YAG-based phosphor, and has the following features.
- composition and composition ratio of the oxynitride phosphor according to the first embodiment it is possible to set a desired emission color in a relatively wide range from the blue-green area to the yellow-red area. Light emission brightness, quantum efficiency, etc. can be adjusted widely.
- color tone, light emission luminance, and quantum efficiency can be adjusted by using two or more elements of Group I I and changing the ratio.
- the Y AG phosphor hardly emits light when excited by light in the visible region of ultraviolet to short wavelength, but the oxynitride phosphor of the first embodiment is of the light in the visible region of ultraviolet to short wavelength Excitation results in high luminous efficiency.
- the oxynitride phosphor according to the first embodiment can provide a phosphor suitable for combination with a light emitting element in the visible region of ultraviolet to short wavelength.
- FIG. 1 is a cross-sectional view showing a configuration of a light emitting device according to a second embodiment of the present invention, and the light emitting device wavelength-converts at least a part of light from the light emitting element and the light emitting element. And at least a first phosphor.
- the light emitting device of the second embodiment is characterized in that the oxynitride phosphor of the first embodiment is used as the first phosphor.
- the light emitting element 10 is composed of a sapphire substrate 1, a semiconductor layer 2 formed on the sapphire substrate 1, and a positive / negative electrode formed on the semiconductor layer 2. It is done.
- the light emitting element 10 is diponded in the cup of the lead frame 13a, and its positive and negative electrodes are respectively connected to the lead frame 13a and the lead frame 13b by the conductive 4 wire 14 .
- a coating member 12 including a phosphor 11 is formed in the tip of the lead frame 13 a so as to cover the light emitting element 10.
- a mold member 15 is formed so as to cover the whole of the lead frame 1 3 a and the lead frame 1 3 b provided with the coating member containing the light emitting element and the phosphor 1 1.
- the semiconductor layer 2 of the light emitting element 10 is composed of a plurality of layers including a light emitting layer (not shown), and this light emitting layer has an emission peak wavelength in the ultraviolet to blue region 50
- the composition is adjusted to be 0 nm or less.
- positive and negative electrodes 3 are formed on the same plane side of the semiconductor layer 2.
- the light emitting device of the second embodiment is manufactured as follows.
- the lead frame 13 is transferred to the wire ponder, the negative electrode 3 of the light emitting element is wire-bonded to the lead frame 13 a provided with the cup by gold wire, and the positive electrode 3 is connected to the other lead frame 1 Wire bond to 3 b.
- the phosphor 11 and the coating member 12 are injected into the cup of the lead frame 13 by the dispenser of the molding apparatus. At this time, the phosphor 11 and the coating member 12 are mixed in advance in a desired ratio uniformly.
- the phosphor 11 includes the oxynitride phosphor of the first embodiment.
- a combination of an oxynitride phosphor and a second phosphor can also be used as the phosphor 11 as the phosphor 11, a combination of an oxynitride phosphor and a second phosphor can also be used.
- the light emitting element 10 is preferably a semiconductor light emitting element having a light emitting layer capable of emitting light of a wavelength capable of efficiently exciting the oxynitride phosphor.
- materials for such semiconductor light emitting devices include various semiconductors such as BN, SiC, ZnSe, GaN, InGa aNI nAl GaN, A1Ga aN, BAlGaN, and BiAlAl. it can. These elements can also contain Si, Zn, etc. as impurity elements to make them luminescent centers.
- nitride semiconductors for example, A1 or As a nitride semiconductor containing Ga and a nitride semiconductor containing I n and G a, I n x A 1 ⁇ G a 0 ⁇ X 0 ⁇ Y, X + Y ⁇ 1) is more preferably mentioned.
- the semiconductor light emitting device one having a homo structure, a hetero structure or a double hetero structure having an MIS junction, a P 1 junction or an 11 junction, etc. is preferably mentioned.
- Various emission wavelengths can be selected depending on the material of the semiconductor layer and the mixed crystal ratio thereof.
- the output can be further improved by using a single quantum well structure or a multiple quantum well structure in which the semiconductor active layer is formed in a thin film in which a quantum effect occurs.
- the light emitting element 10 is made of a nitride semiconductor
- a substrate made of a material such as sapphire, spinel, SiC, Si, ZnO, GaAs, GaN, etc. is preferably used.
- a sapphire substrate In order to form a nitride semiconductor with good crystallinity with high mass productivity, it is preferable to use a sapphire substrate.
- a nitride semiconductor can be formed on the sapphire substrate by the HVPE method, the MOCVD method, or the like. Specifically, puffs that are grown on sapphire substrates at low temperatures such as Ga N, A 1 N, Ga AIN, and become non-single crystals Forming a nitride semiconductor having a pn junction thereon.
- a light emitting device capable of efficiently emitting light in the ultraviolet region having an n-junction using a nitride semiconductor is manufactured, for example, as follows.
- SiO 2 is formed in a stripe shape substantially perpendicular to the orientation flat surface of the sapphire substrate.
- G A N is grown using Epitaxial Lateral Over Grows GaN (ELOG) using the HV PE method.
- a first contact layer formed of n-type gallium nitride by MO C VD method, a first cladding layer formed of n-type nitride aluminum gallium, an indium nitride aluminum nitride well layer and a nitride nitride.
- Active layer of multiple quantum well structure in which multiple barrier layers of aluminum aluminum gallium are stacked, second clad layer made of p-type aluminum nitride gallium, second made of p-type gallium nitride Contact layers are stacked sequentially. In this way, a double hetero structure nitride semiconductor light emitting device is manufactured.
- the active layer may be formed into a ridge stripe shape and sandwiched by the guide layers, and the end face of the resonator may be provided to form a semiconductor laser device that can be used for this purpose.
- nitride semiconductor exhibits n-type conductivity without doping with impurities
- n it is preferable to appropriately introduce Si, Ge, Se, Te, C or the like as a dopant of the type.
- dope p- type dopants such as Z n, M g, B e, C a, S r, B a and the like.
- nitride semiconductor it is preferable to reduce resistance of the nitride semiconductor by heating with a furnace, plasma irradiation, or the like after the introduction of the p-type dopant, because the nitride semiconductor is difficult to be p-type doped only by doping the p-type dopant.
- the sapphire substrate is not removed, part of the first contact layer is exposed by etching from the P-type side to the surface of the first contact layer, and an electrode is formed on each contact layer. Thereafter, a semiconductor wafer is cut into a chip shape to fabricate a light emitting device made of a nitride semiconductor (for example, a nitride semiconductor light emitting device having a structure shown in FIG. 1).
- Tsutomu element 10 has an emission spectrum in the ultraviolet region, and its emission peak wavelength is 360 nm or more and 420 nm or less, or 450 nm or more and 470 nm or less. It is preferred to use.
- the semiconductor light emitting device 10 used in the second embodiment includes a sheet resistance Rn of an n-type contact layer formed to have an impurity concentration of 10 17 to 10 2 G / cm 3 , and a light transmitting p electrode. It is preferable that the sheet resistance Rp be adjusted so as to satisfy the relationship of RpRRn.
- the n-type contact layer is preferably formed to a thickness of 3 to 10 ⁇ , more preferably 4 to 6, and its sheet resistance Rn is estimated to be 10 to 15 ⁇ / hole. Therefore, it is preferable to set the thickness' so that the sheet resistance Rp of the light transmitting p electrode is 10 to 15 ⁇ or more.
- the light transmitting p electrode may be formed of a thin film having a thickness of 150 ⁇ or less.
- the light transmitting ⁇ electrode is formed of a multilayer film or alloy composed of one selected from the group of gold and platinum group elements and at least one other element
- Adjustment of the sheet resistance of the translucent ⁇ electrode according to the content of the contained gold or platinum group element improves the stability and the reproducibility. Since the gold or metal element has a high absorption coefficient in the wavelength region of the semiconductor light emitting device used in the present invention, the smaller the amount of gold or platinum group element contained in the light transmitting ⁇ electrode, the better the transparency.
- the sheet resistance relationship is Rp ⁇ Rn, but in the second embodiment, Rp R Rn is adjusted, so that the light transmitting p electrode is a thin film compared to the conventional one. In this case, the thin film can be easily formed by reducing the content of the gold or platinum group element.
- the sheet resistance Rn ⁇ of the n-type contact layer and the sheet resistance Rp ⁇ / port of the light transmitting p electrode have a relationship of Rp Rn. Is preferred. It is difficult to measure Rn after manufacturing the semiconductor light emitting device 10, and it is virtually impossible to know the relationship between Rp and Rn. However, from the state of light intensity distribution of the light emitting lamp, what kind of Rp and Rn You can find out if you are in a relationship with
- the light transmitting p electrode and the n-type contact layer have a relationship of Rp ⁇ Rn
- the light transmitting By providing a p-side pedestal electrode having an extended conduction portion in contact with the p-electrode, the external quantum efficiency can be further improved.
- the extension conducting part is a satellite line because the area for blocking light is reduced, but it may be mesh-like. Further, the shape may be curved, latticed, branched or bowl-like, in addition to linear.
- the line width and the length of the extended conductive portion so that the light blocking effect does not exceed the light emission enhancing effect.
- the light emitting element 10 emitting blue light is also a group III nitride compound light emitting element.
- a light emitting element 10 may be formed, for example, on a sapphire substrate 1 via a G a N buffer layer, from an n-type G a N layer undoped with S i, an n-type G a N doped with S i N- type contact layer, undoped G a N layer, light emitting layer of multiple quantum well structure (quantum well structure of G a N barrier layer ZI n G a N well layer), M-doped p-type G a N P-type p-clad layer consisting of p-type G a N, M g doped! )
- light emitting elements different from this configuration can also be used.
- the p-mic electrode is formed on substantially the entire surface of the p-type contact layer, and the p-pad electrode is formed on a portion of the p-mic electrode.
- the n-electrode is formed on the exposed portion by exposing the part of the ⁇ -type contact layer by removing the undoped G a N layer from the p-type contact layer by etching.
- the present invention is not limited to this, and for example, a single quantum well structure + using 'In G a ⁇ It may be made, or G.sub.a N doped with S.sub.i and Z.sub.n may be used.
- the main light emission peak wavelength can be changed in the range from 4 20 nm to 4 9 0 nm by changing the content of I n.
- the emission peak wavelength is not limited to the above range, and one having an emission peak wavelength in 3600 to 550 nm can be used.
- the coating member 1 2 (light transmitting material) is provided in the tip of the lid frame 13 and is used by being mixed with the phosphor 11.
- transparent resin having excellent temperature characteristics such as epoxy resin, urea resin, silicone resin and the like, weather resistance, silica sol, glass, inorganic binder and the like are used.
- a diffusing agent barium titanate, titanium oxide, aluminum oxide, etc. may be contained.
- light stabilizers and coloring agents may be contained.
- the lead frame 13 is composed of a mount lead 13a and an inner lead 13b.
- the mount lead 1 3 a is for arranging the light emitting element 10.
- the top of the mount lead 13a is shaped like a cup, and the light emitting element 10 is dipped in the cup.
- the inside of the cup is covered with the phosphor 11 and the coating member 12 so as to cover the light emitting element 10.
- a plurality of light emitting elements 10 may be disposed in the cup, and the mount lead 13a may be used as a common electrode of the plurality of light emitting elements 10. In this case, sufficient electrical conductivity and connectivity with the conductive wire 14 are required.
- the die bonding (adhesion) between the light emitting element 10 and the cup of the mount lead 13a can be performed by a thermosetting resin or the like.
- the thermosetting resin include epoxy resin, acrylic resin and imide resin.
- Ag-paste, carbon paste, metal bumps or the like can be used for die bonding with the mount lead 13 a by the face-down light emitting element 10 or the like and for electrical connection.
- the inner lead 13 b is connected to the conductive wire 14 extending from the electrode 3 of the light emitting element 10 disposed on the mount lead 13 a.
- the inner lead 13 b is preferably disposed away from the mount lead 13 a in order to avoid a short circuit with the mount lead 13 a. In the case where a plurality of light emitting elements 10 are provided on the mount lead 13a, it is necessary to be able to arrange so that the respective conductive wires do not contact with each other.
- the inner lead 13 b is preferably made of the same material as the mount lead 13 a, and iron, copper, iron-containing copper, gold, platinum, silver, etc. should be used. Can.
- the conductive wire 14 electrically connects the electrode 3 of the light emitting element 10 to the lead frame 13. It is preferable that the conductive wire 14 has good ohmic contact with the electrode 3, mechanical connectivity, electrical conductivity and thermal conductivity. Specific materials of the conductive wire 14 are preferably metals such as gold, copper, platinum, aluminum and their alloys.
- the phosphor 11 can be attached using various coating members (binder 1) such as resin which is an organic material and glass which is an inorganic material.
- the coating member 12 may have a role as a pinder for fixing the fluorescent substance 11 to the light emitting element 10 or the window part 107 or the like.
- a transparent resin having excellent weather resistance such as an epoxy resin, an acrylic resin, or silicone is preferably used as a specific material.
- silicone is preferable because it is excellent in reliability and can improve the dispersibility of the phosphor 11.
- the phosphor 108 can be well adhered to the window 107.
- precipitation method, sol-gel method, spray method or the like can be used.
- phosphors 1 1, 10 8, silanol (S i (OE t) 3 OH), and ethanol are mixed to form a slurry, and after the slurry is discharged from a nozzle, the temperature is 300 ° C.
- the phosphor can be fixed in a desired place by heating for 3 hours to make silanol into S i 0 2 .
- an inorganic binder may be used as the coating member (binder) 12 10 9.
- the binder is a so-called low melting glass, fine particles, and little absorption to radiation in the ultraviolet to visible region, and it is in the coating member (binder) 12 10 9 It is preferred that it be extremely stable.
- a binder whose particle is an ultrafine powder even if the melting point is high, for example, silica, It is preferable to use alumina, or fine particle size alkaline earth metal pyrophosphate obtained by precipitation method, orthophosphate or the like. These binders can be used alone, or in combination with each other.
- the binding agent is preferably wet-powdered in a vehicle, made into a slurry, and used as a binding agent slurry.
- the vehicle is a high viscosity solution obtained by dissolving a small amount of a binder in an organic solvent or deionized water.
- an organic vehicle can be obtained by incorporating 1 wt% of a binder, etrocellulose, with butyl acetate, an organic solvent.
- the phosphors 11 and 18 are contained in the binder slurry thus obtained to prepare a coating solution.
- the total amount of the binder in the slurry can be about 1 to 3% wt with respect to the amount of the phosphor in the coating solution.
- the coating solution is applied to the back of the window 107. Then, blow warm air or hot air to dry. Finally, baking is performed at a temperature of 400 ° C. to 700 ° C. to disperse the vehicle. As a result, the phosphor layer is attached to a desired place with a binder.
- the mold member 15 is provided to protect the light emitting element 10, the phosphor 11, the coating member 12, the lead frame 13, the conductive wire 14 and the like from the outside.
- the mold member 15 also has the purpose of expanding the viewing angle, relaxing the directivity from the light emitting element 10, and converging and diffusing the light emission, in addition to the purpose of protection from the outside.
- the mold member can be shaped as desired to achieve these goals.
- the mold member 15 may have a structure in which a plurality of layers are stacked.
- a material excellent in light transmittance, weather resistance and temperature characteristics such as epoxy resin, urea resin, silicone resin, silica sol, glass and the like can be used.
- the mold member 15 can also contain a diffusing agent, a coloring agent, an ultraviolet absorber, and a phosphor.
- a diffusing agent barium titanate, titanium oxide, aluminum oxide and the like are preferable. Coat It is preferable to use the same material in order to reduce the repulsion of the material with the inging member 12 and to take the refractive index into consideration.
- a light emitting device of the same emission color as the emission color of the oxynitride phosphor can be realized.
- the oxynitride phosphor according to the present invention can adjust the light emission color and the light emission luminance in a wide range, light emitting devices with various color tones can be realized. .
- the oxynitride phosphor according to the present invention can emit light with high brightness and has high light emission efficiency, it emits light with high brightness and high light emission efficiency.
- Equipment can be provided. Embodiment 3.
- FIG. 2 is a plan view (FIG. 2A) and a cross-sectional view (FIG. 2B) showing the configuration of a light emitting device according to a third embodiment of the present invention.
- the light emitting device of the third embodiment is a surface mounted light emitting device.
- a nitride semiconductor light emitting element that emits light in the ultraviolet region can be used as the light emitting element 101, and a nitride semiconductor light emitting element that emits light in the blue region. Can also be used.
- the specific configuration is the same as that of the light-emitting element of Embodiment 2.
- the light emitting element 101 is a nitride semiconductor light emitting element having an InGaN semiconductor having a light emission peak wavelength of about 370 nm as a light emitting layer.
- an n-type G a N layer which is an undoped nitride semiconductor and an S-doped n-type electrode are formed on a sapphire substrate to form an n-type contact layer G
- a light emitting layer of a single quantum well structure including an aN layer, an n-type G a N layer which is a nitride semiconductor of an n-type, an n-type Al GaN layer which is a nitride semiconductor, and an I nG a N well layer is stacked. It has a structure.
- an AlGaN layer as a Mg-doped p-type cladding layer and a GaN layer as a Mg-doped p-type contact layer are further sequentially stacked.
- a sapphire layer is formed on a sapphire substrate by growing a GaN layer at low temperature.
- the p-type semiconductor is annealed at 400 ° C. or higher after film formation.
- the surface of each pn contact layer is exposed on the same side of the nitride semiconductor on the sapphire substrate by etching.
- n-type electrode is formed in a band shape on the exposed n-type contact layer, and a translucent p-type electrode made of a metal thin film is formed on substantially the entire surface of the remaining p-type contact layer. Furthermore, a pedestal electrode is formed on the light transmitting p electrode in parallel with the n electrode by sputtering.
- a Kovar package 105 is used, which has a recess in the central part and a base part in which a Kovar lead electrode 102 is airtightly inserted and fixed on both sides of the recess.
- An NiZAg layer is provided on the surface of the package 105 and the lead electrode 102.
- the above-mentioned light emitting element 101 is die-pounded with an Ag-Si alloy.
- all the constituent members of the light emitting device can be made of an inorganic substance, and even if the light emitted from the light emitting element 101 is in the ultraviolet region or the short wavelength region of visible light, A reliable light emitting device can be obtained.
- each electrode of the light-emitting element 101 which has been dip-bonded and each lead electrode 102 exposed from the bottom of the package recess are electrically conducted with Ag wire 104 respectively.
- the package is sealed with a Kovar lid 106 having a glass window 107 at the center and seam welding is performed.
- the phosphor 108 can be well adhered to the window 107. It is preferable.
- the adhesion method precipitation method, sol-gel method, spray method, etc. can be used.
- a phosphor is formed by mixing silanol (Si (OE t) 3 OH) and ethanol to form a slurry, and the slurry is discharged from a nozzle and then brought to 300 ° C. It can be heated for 3 hours to make silanol into S i 0 2 2 and fix the phosphor in a desired place.
- binder 1 which is an inorganic substance can also be used as the coating member (binder 1).
- the binder is a so-called low melting glass, fine particles, and little absorption of radiation in the ultraviolet to visible region, and the coating member
- Binder 1 It is preferable that the binder be extremely stable.
- the light emitting device of the third embodiment configured as described above has the same effect as that of the second embodiment.
- the second phosphor is contained together with the oxynitride phosphor as the phosphors 11 and 18. is there.
- a lanthanide such as Eu an alkaline earth halogenapatite phosphor mainly activated by a transition metal element such as Mn, an alkaline earth metal borate halogen fluorescent light Alkali earth metal aluminate phosphor, earth alkaline earth acid salt, alkaline earth sulfur salt, alkaline earth thiogallate, alkaline earth silicon nitride, germanate or C at least any one selected from rare earth aluminates activated mainly by lanthanide series elements such as e, rare earth silicates or organic and organic complexes mainly activated by lanthanoid series elements such as Eu; It is preferably at least one.
- phosphors include, but are not limited to, the following phosphors.
- R is Eu, Mn, and Eu Mn, and any one or more of.
- R is at least one selected from S r, Ca, B a, Mg, and Z n. And at least one selected from F, C 1, B r and I. R is Eu, Mn, and any one or more of Eu and Mn.
- alkaline earth sulfide phosphors examples include La 2 O 2 S: Eu, Y 2 O 2 S: Eu, Gd 2 O 2 S: Eu, and the like.
- the second phosphor mentioned above may be selected from 13 Cu, Ag, Au, Cr, Nd, Dy, Co, Ni, Ti instead of Eu if desired, or by heating to £ 11. It may also contain one or more of the following.
- phosphors other than the above-mentioned phosphors and having the same performance and effects are also available. It can be used.
- the second phosphors phosphors having emission spectra in yellow, red, green and blue by excitation light of the light emitting elements 10 and 101 can be used, yellow, blue which are intermediate colors of these A phosphor having an emission spectrum in green, orange, etc. can also be used.
- the first phosphor, green to yellow emits C a S i 2 0 2 N 2 : Eu or S r S i 2 0 2 N 2 : Eu, and the second phosphor becomes blue.
- the oxynitride phosphor when light of about 460 nm is used as an excitation light source to irradiate the oxynitride phosphor and the second phosphor, the oxynitride phosphor emits light of about 500 nm. As a result, it is possible to provide a white-based light emitting device excellent in color rendering.
- the particle size of the phosphors 11, 108 is preferably in the range of 1 m to 20 ⁇ m, more preferably 2 jun! It is ⁇ 8. In particular, 5 m to 8 ⁇ m is preferable. Phosphors having a particle size smaller than 2 ⁇ tend to form aggregates. On the other hand, a phosphor with a particle size in the range of 5 m to 8 ⁇ m has high light absorption and conversion efficiency. As described above, the mass productivity of the light-emitting device is improved by including the phosphor having a large particle diameter which has optically excellent characteristics.
- the particle size refers to the average particle size obtained by the air permeation method. Specifically, after taking 1 cm 3 minutes of sample under an environment of temperature 25 ° C and humidity 70% and packing it into a special tubular container, dry air of constant pressure is flowed and differential pressure The surface area is read and converted to the average particle size.
- the average particle diameter of the phosphor used in the present invention is preferably in the range of 2 ⁇ m to 8 jum.
- the phosphor having this average particle diameter value is contained at high frequency.
- the particle size distribution be distributed in a narrow range, and in particular, it is preferable that the particle size is less than 2 ⁇ m. As described above, by using the phosphor with small variation in particle diameter and particle size distribution, color unevenness is further suppressed, and a light emitting device having a favorable color tone can be obtained.
- the position of the phosphor 108 in the light emitting device of FIG. 2 can be arranged at various positions in relation to the light emitting element 101.
- the phosphor 108 can be contained in a mold material for covering the light emitting element 101.
- the light emitting element 101 and the phosphor 108 may be disposed with a gap, or the phosphor 108 may be directly placed on the top of the light emitting element 101. .
- the light emitting device of the fourth embodiment configured as described above has the same effects as the light emitting device of the second embodiment and has the following effects.
- the emission color of the mixed light emission of the oxynitride phosphor and the emission of the second phosphor is obtained.
- a light emitting device can be realized that emits light by mixing the light emission of the light emitting device or the light emitting element (light emitting element for visible light), the light emission of the oxynitride phosphor and the light emission of the second phosphor.
- the type of the second phosphor and the ratio to the oxynitride phosphor it is possible to adjust the light emission color, the light emission luminance, etc. in a wide range. It becomes possible to realize more kinds of color tones than those of Forms 2 and 3. Embodiment 5.
- Embodiment 5 is a method for producing an oxynitride phosphor represented by S r Si 2 O 2 N 2 : E u, and FIG. 31 shows the oxynitridation of Embodiment 5.
- FIG. 5 is a process diagram showing a method of producing a substance phosphor.
- a nitride of S r, a nitride of S i, an oxide of S i, and an oxide of E u are prepared.
- these raw materials it is better to use purified ones, but commercially available ones may be used.
- an oxynitride phosphor is manufactured by the following method.
- compounds such as an amide compound, an amide compound, and S r O can be used, or S r alone can also be used.
- the raw material S r may also contain B, G a and the like.
- Powder the nitride of S r S 3 N 2 (P 1). Use Si 3 N 4 as the raw material Si nitride.
- Si nitride As a raw material, other nitride compounds, imide compounds, amide compounds and the like can be used, or Si single substance can also be used.
- the purity of the raw material Si is preferably 3 N or more, but may contain B, Ga, and the like.
- S i 0 2 is used as an oxide of raw material S i.
- a commercially available product is used (Wako Pure Chemical made Silicon Dioxide 99.9. 190-09072).
- the Eu oxide Eu 2 0 3 is used as the raw material.
- a raw material it is preferable to use a single substance of Eu, but a nitride compound, an imide compound, an amide compound and the like can also be used.
- a nitride compound, an imide compound, an amide compound and the like can also be used.
- an aluminum nitride in addition to an aluminum oxide. This is because the product contains oxygen or nitrogen.
- this composition is a representative composition estimated from the compounding ratio, and in the vicinity of the ratio, it has sufficient properties to withstand practical use.
- the composition of the target phosphor can be changed by changing the blending ratio of each raw material.
- the firing temperature is not particularly limited, but firing is performed in the range of 1200 to 2000 ° C. Preferably, a calcination temperature of 1400 to 2000 ° C. is more preferred.
- the raw material of the phosphor 11 is preferably fired using a crucible or port made of boron nitride (BN). In addition to boron nitride materials, alumina (Al 2 O 3 ) materials can also be used.
- the firing is preferably performed in a reducing atmosphere.
- the reducing atmosphere is a nitrogen atmosphere, a nitrogen / hydrogen atmosphere, an ammonia atmosphere, an inert gas atmosphere such as argon, or the like.
- oxynitride phosphor represented by E u
- the body can be manufactured as follows.
- the Sani ⁇ of Eu, the compound H 3 B0 3 of B dry blending.
- a compound of Eu an aluminum oxide is used, but as with the other constituent elements described above, metals such as aluminum aluminum, aluminum nitride aluminum, etc. can also be used.
- an imide compound or an amide compound can also be used as the raw material Eu. It is preferable that the aluminum oxide be of high purity, but commercially available ones can also be used.
- the compound B is dry mixed, but may be wet mixed.
- the method for producing the oxynitride phosphor will be described by taking the compound H 3 BO 3 of B as an example, and there are L i, Na., K, etc. as constituent elements other than B, and these compounds, for example, L i OH * H 2 0, Na 2 C0 3, K 2 C0 3, RbC l, C s C l, Mg (NO 3) 2, C a C 1 2 ⁇ 6H 2 OS r C 1 2 ⁇ 6H 2 0 , B a C 1 2 ⁇ 2 H 2 OT i OS 0 4 ⁇ H 2 0, Z r O (N 0 3 ) 2 , H f C 1 4 , Mn 0 2 , R e C 1 5 , C u
- Powder frame a mixture of Eu and B.
- the average particle size of the mixture of Eu and B after powdering is preferably about 0.1 ⁇ to 15 ⁇ .
- the nitride of S r, the nitride of S i, the oxide of S i, B is contained in substantially the same manner as the above-mentioned production process of S r S i 2 0 2 N 2 : Eu Mix Eu oxide,. After the mixing, baking is performed to obtain the intended oxynitride phosphor.
- the phosphor according to the sixth embodiment of the present invention relates to an oxynitride phosphor particularly suitable for use in combination with a light emitting device, particularly a nitride semiconductor device, and the phosphor is In the oxynitride phosphor of the first embodiment, B a, S i and E u are essential.
- the oxynitrite phosphor according to the sixth embodiment uses a rare earth element which is at least one or more of elements essentially containing Eu as an activator, and is selected from the group consisting of Ca 2 Sr Ba Zn. And at least one element selected from the group consisting of CS ⁇ Ge Sn T i Z r H f, at least one or more of the group IV elements of the group IV And at least a group element.
- a rare earth element which is at least one or more of elements essentially containing Eu as an activator, and is selected from the group consisting of Ca 2 Sr Ba Zn.
- at least one element selected from the group consisting of CS ⁇ Ge Sn T i Z r H f at least one or more of the group IV elements of the group IV
- the combination of the elements is optional, it is preferable to use one having the following composition.
- -The oxynitride phosphor according to Embodiment 6 has the general formula L x M Y O z N ( ( 2-3)
- the oxynitride phosphor of embodiment 6 B a S i 8 G e 0, 2 0 2 N 2 Eu B a S i 9 G e 0. i0 2 N 2:.
- the color tone and the brightness can be adjusted by changing the ratio of O and N as in the embodiment 1, and (L + M) / (0
- the ratio of O and N As in the embodiment 1, and (L + M) /
- the composition of the oxynitride phosphor may contain at least one or more of Li, Na, K, Rb, Cs, Mn, Re, Cu, Ag, and Au.
- Luminescent efficiency such as luminance and quantum efficiency can be adjusted by adding these elements.
- other elements may be included to the extent that they do not impair the life.
- L is at least one or more elements of Group I / I elements essentially including B a selected from the group consisting of C a, S r, B a and Z n. That is, B a may be used alone, and various combinations such as force B a and C a, B a and S r, ': B a, C a and S r, etc. may be changed. The mixture of these Group I and I elements can be varied as desired.
- M is at least one element of Group IV, which is at least one element selected from the group consisting of C, S i, G e, S n, T i and H f. M may also be used alone as Si, but various yarns and combinations such as Si and Ge, Si and C may be used. By using Si, it is possible to provide an inexpensive phosphor having good crystallinity.
- R is a rare earth element that is at least one or more elements that make E u essential.
- the rare earth elements are La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu.
- Eu may be used alone, but elements containing at least one or more elements selected from Eu and rare earth elements may also be used.
- Elements other than Eu are co-activators, It is to act.
- R preferably contains 70% or more of Eu.
- the rare earth element Yu Pium Eu At the center of Tsutomitsu, we use the rare earth element Yu Pium Eu. Although the present invention is described using only Eu, the present invention is not limited to this, and one co-activated with Eu can also be used.
- Yumou Pium mainly has divalent and trivalent energy levels.
- the phosphor of the present invention uses Eu 2+ as an activator with respect to the host alkaline earth metal cyanide. Eu 2 + is easily oxidized and generally sold in a composition of trivalent Eu 2 O 3 .
- the main components L and M can use their respective compounds.
- the main components L and M metals, oxides, imides, amides, nitrides and various salts can be used. Also, mix the elements of L and M in advance and use them.
- Q is at least one group III element selected from the group consisting of B, Al, Ga, and I n.
- Q metals, oxides, imides, amides, nitrides and various salts can be used.
- the oxynitride phosphor of Embodiment 6 can be produced as follows. First, L nitride, M nitride and M oxide are mixed as a base material. In the base material, an oxide of Eu is mixed as an activator. Measure these as desired and mix until uniform.
- L nitride, M nitride, and M oxide of the host material are, for example, 0.5 N L nitrides 1-5, 0.25 M N nitrides 1. 75, 2. It is preferable that they are mixed in a molar ratio of 25 M oxide and 3.75. These matrix materials are represented by L x M Y O z N ( (2/3) X + Y-. (2/3) ⁇ - ⁇ ) : R or L x M Y Q T O z N
- a predetermined amount is weighed and mixed such that the composition ratio of ((2/3) X + Y + T-(2/3) Z ⁇ a ) 'R is obtained.
- FIG. 13 is a process diagram showing a method of producing the oxynitride phosphor of Embodiment 6.
- a nitride of Ba, a nitride of Si, an oxide of Si, and an oxide of Eu are prepared.
- purified ones may be used, but commercially available ones may be used.
- an oxynitride phosphor is manufactured by the following method.
- B a nitride B a 3 N 2 is used.
- compounds such as an imide compound, an amide compound, and B a O can also be used, or a single substance of B a can also be used.
- the raw material B a may also contain B, G a and the like.
- Si nitride Si 3 N 4 is used.
- a nitride compound, an imide compound, an amide compound and the like can be used, or a simple substance of Si can also be used.
- S i 3 N 4 S i (NH 2) 2, Mg 2 S i, C a 2 S i, and the like S i C.
- the purity of S i of the raw material is preferably 3 N or more, but may contain B, G a and the like.
- S i 0 2 is used as an oxide of raw material S i.
- a commercially available product is used (Wako Pure Chemical made Silicon Dioxide 99.9% 190-09072).
- Eu 2 0 2 is used as an oxide of raw material Eu.
- a raw material a nitride compound, an amide compound, an amide compound and the like can be used, or a single substance of Eu can also be used.
- aluminum oxide it is preferred to use aluminum nitride. This is because oxygen or nitrogen is contained in the product.
- the raw materials are weighed so as to achieve a predetermined blending ratio.
- a mixture of a nitride of Ba, a nitride of Si, an oxide of Si, and an oxide of EII is fired (P6).
- the mixture is poured into a crucible and fired.
- this composition is a representative composition estimated from the compounding ratio, and in the vicinity of the ratio, it has sufficient properties to withstand practical use.
- the composition of the target phosphor can be changed by changing the blending ratio of each raw material.
- the firing temperature is not particularly limited, but firing is preferably performed in the range of 1200 to 1700 ° C., and a firing temperature of 1400 to 1700 ° C. is more preferable.
- the raw material of the phosphor 11 is preferably fired using a crucible or port made of boron nitride (BN).
- BN boron nitride
- Other crucible nitride boride material quality, alumina (A 1 2 0 3) can also be used crucible material.
- the firing is preferably performed in a reducing atmosphere.
- the reducing atmosphere is a nitrogen atmosphere, a nitrogen-hydrogen atmosphere, an ammonia atmosphere, an inert gas atmosphere such as argon, or the like.
- the oxide of Eu, the compound H 3 B0 3 of B dry blending.
- an aluminum salt of aluminum is used, but as with the other constituent elements described above, metals such as metallic aluminum, metallic aluminum, etc. can also be used. Besides this, it is also possible to use imide compounds and amide compounds as the starting material Eu. It is preferable that the acid and potassium salts have high purity, but commercially available ones can also be used.
- B compound It is dry mixed but can be wet mixed.
- the compound H 3 BO 3 of B is taken as an example to explain the method for producing the oxynitride phosphor, but there are Li, Na, K, etc. as constituent elements other than B, and these compounds, for example, L i 2 ⁇ H 2 O Na 2 CO s , K 2 C 0 3 , R b C 1, C s C 1, Mg (NO 3 ) 2 , C a C 1 a ⁇ 6H 2 0, S r C 1 2 ⁇ 6H 2 ⁇ , B a C 1 2 ⁇ 2H 2 0, T i OS0 4 * H 2 0, Z r O (NO 3) 2, H f C 1 4, Mn_ ⁇ 2, R e C 1 5, Cu (CH 3 COO) 2 ⁇ H 2 0, AgN0 3 , HAuC 1 4 ⁇ 4H 2 0, Z n (NO 3) 2 - 6H 2 0, can be used Ge_ ⁇ 2, S n (CH 3 COO ) 2 or the like.
- the average particle size of the mixture of Eu and B after grinding is preferably about 0.1 m to 15 m.
- the aforementioned B a S i 2 0 2 N 2 almost same as the manufacturing process of Eu, nitride of B a, nitrides S i, oxides of S i, containing B Mix Eu oxide,. After the mixing, baking is performed to obtain the intended oxynitride phosphor.
- the oxynitride fluorescent material of the sixth embodiment configured as described above has the stability equal to or higher than that of the Y AG-based phosphor, and has the same function and effect as the first embodiment.
- the oxynitride phosphor of the sixth embodiment can be selected to have a composition and composition ratio so as to have a light emission spectrum having a light emission peak in the blue-green region to the green region, and in particular, the range Can realize high luminance and luminous efficiency, and can adjust the color tone, quantum efficiency, etc. widely.
- the phosphor and the light emitting device according to the present invention will be described by way of examples, but the present invention is not limited to these examples.
- the temperature characteristics are shown as relative luminance with the light emission luminance at 25 ° C. being 100%.
- the particle size indicates the above-mentioned average particle size, and is a value obtained by an air permeation method called F. S. S. S. No. (Fisher Sub Sieve Sizer's No.).
- Examples 1 to 27 relate to the oxynitride phosphor of the first embodiment. Examples 1 to 5>
- Table 1 shows the characteristics of Examples 1 to 5 of the oxynitride phosphor according to the present invention.
- FIG. 5 is a diagram showing an excitation spectrum of the oxynitridation phosphors of Examples 1 to 5.
- FIG. 6 is a view showing the reflection spectrum of the oxynitridation phosphor of each of Examples 1 to 5.
- FIG. 7 is a SEM (scanning electron microscope) photograph of the oxynitride phosphor of Example 1.
- JISZ 8110 is taken into consideration for the relationship between color names and chromaticity coordinates.
- Example 1 is an oxynitride phosphor represented by C a S i 2 0 2 Eu 2 : Eu.
- Example 2 Ca 0 90 Mg 0 10 S i 2 0 2 N 2:.. Ru oxynitride phosphor der represented by E u.
- Example 3 is an oxynitride phosphor represented by S r Si 2 O 2 N 2 : Eu. Real ⁇ 4, S r 0. 90 Mg 0 10 S i 2 0 2 N 2:.
- Example 5 B a S i 2 0 2 N 2: a oxynitride phosphor represented by Eu.
- Ca 3 N 2 , S i 3 N 4 , S i 0 2 and Eu 2 O 3 were used as raw materials, and those raw materials were crushed to 0.1 to 3.0 m. Later, I did the following.
- the C After weighing the quantity, the C a 3 N 2, S i 3 N 4, S I_ ⁇ 2, Eu 2 0 3, in a nitrogen atmosphere, in a glove box, and mixed until uniform.
- the Eu concentration is 0.43 m'ol%.
- the target oxynitride phosphor was obtained.
- the theoretical composition of the obtained oxynitride phosphor is C a S i 2 0 2 N 2 : Eu.
- the oxynitride phosphor according to the example uses a crucible made of boron nitride and is fired in an ammonia atmosphere. In fact, it is not very good to use metal chopsticks. This is because it is thought that if a metal crucible is used, the crucible is eroded and this causes deterioration of the light emission characteristics. Therefore, it is preferable to use a ceramic crucible such as alumina.
- Example 2 is an oxynitride phosphor in which a part of C a is replaced with M g.
- Example 2 is: Magnesium nitride Mg 3 N 2 (high purity chemical 98% MGI 02 PB) (molecular weight 101.
- Example 3 is an oxynitride phosphor in which C a in Example 1 is substituted with S r.
- the finely ground powder was weighed so as to be 1: 3. 02: 0. 046.
- Example 3 the raw materials were mixed and fired under the same conditions as Example 1.
- the weight% of O and N of the oxynitride phosphor of Example 3 obtained was measured, the whole contained 15.3% by weight of O and 11,2% by weight of N.
- Example 4 is an oxynitrite fluorescent substance in which Ca in Example 2 is substituted with S r.
- Example 5 is an oxynitriding phosphor in which Ca in Example 1 is replaced with Ba.
- Example 5 uses a nitride barium Ba 3 N 2 (molecular weight 316.6), the mixing ratio (mol 3 ⁇ 4) of the raw force B a 3 N 2: S i 3 N 4: S i 0 2: Eu 2 0 3
- B a 3 N 2 11. 2 g
- the fired products of Examples 1 to 5 are all crystalline powder or granules.
- the particle size is almost :! It was ⁇ 5 m.
- the excitation spectrum of the oxynitride phosphors of Examples 1 to 5 was measured. As a result of the measurement, it is strongly excited on the shorter wavelength side than 490 nra.
- the temperature characteristics were extremely good.
- the temperature characteristics are shown as relative luminance with the light emission luminance of 25 ° as 100%.
- Particle size is FSSS No. (Fisher Sub It is the value by the air permeation method of Sieve Sizer's No.) '.
- the temperature of Examples 1 to 5 is 9 5 to 100% at 100 ° C. When the temperature was 200 ° C., it was 65 to 90%.
- Table 2 shows the characteristics of Examples 6 to 15 of the oxynitride fluorescent material according to the present invention.
- FIG. 10 is a diagram showing
- FIG. 12 is a diagram showing the excitation spectrum of the oxynitride phosphors of Examples 1 to 15.
- FIG. 13 is a diagram showing a reflection spectrum of the oxynitride phosphors of Examples 11 to 15.
- Example 6 Sr / Ca emission peak wavelength color tone color tone emission luminance efficiency efficiency ratio nm) X y (%) (%)
- Example 6 0/10 564 0.437 0.545 100.0 100.0
- Example 7 3/7 549 0.391 0.578 109.4 103.1
- Example 8 5/5 545 0.378 0.588 125.4 116.9
- Example 9 7/3 545 0.371 0.600 162.8 142.7
- Example 10 10/0 540 0.347 0.616 138.8 119.2
- Example 6 an oxynitride phosphor was manufactured under substantially the same conditions as in Example 1.
- the raw materials used were S r 3 N 2 , Ca 3 N 2 , S i 3 N 4 , S i 0 2 and Eu 2 0 3 .
- S r 3 N 2, Ca 3 N 2, S i 3 N 4, S i 0 2, Eu 2 O s After ⁇ the raw material to a predetermined quantity, and S r 3 N 2, Ca 3 N 2, S i 3 N 4, S i 0 2, Eu 2 O s, in a nitrogen atmosphere, in a glove box, uniform It mixed until it became.
- the Eu concentration is 0.43 mol%.
- the above compounds are mixed and charged into a boron nitride crucible in an ammonia atmosphere,
- Baking was performed at 450 ° C. for about 5 hours.
- Examples 1 to 15 are oxynitride phosphors represented by S r x C a (10 _ x) S i 2 2 0 2 N 2 : Eu (0 ⁇ X ⁇ 1 0), and S r and It is manufactured by changing the molar ratio to Ca.
- Example 11 to 15 an oxynitride phosphor was produced under substantially the same conditions as in Example 1.
- the raw materials used were S r 3 N 2 , Ca 3 N 2 , S i 3 N 4 , S i 0 2 and Eu 2 O 3 . After the raw materials are weighed to a predetermined amount, S r 3 N 2 , C a 3 N 2 , S i 3 N 4 , S i 0 2 and Eu 2 O 3 in a nitrogen atmosphere in a glove box. Mixed until uniform.
- the Eu concentration is 0.43 mol%.
- the above compounds were mixed, charged in a nitrogen nitride crucible in an ammonia atmosphere, and calcined at about 1550 ° C. for about 5 hours.
- the target oxynitride phosphor was manufactured.
- Table 3 shows the characteristics of the example 10, 16 to 20 of the oxynitride phosphor according to the present invention.
- FIG. 16 is a diagram showing the excitation spectrum of the oxynitride phosphors of Examples 10 and 16 to 20.
- FIG. 17 is a diagram showing reflection spectra of the oxynitride phosphors of Examples 10 and 16 to 20.
- Example 1 0, 1 6 to 20, S r X B a one x) S i 2 0 2 N 2: represented by Eu (0 ⁇ X ⁇ 1), changing the molar ratio of S r and B a Manufacturing.
- S r X B a one x) S i 2 0 2 N 2 represented by Eu (0 ⁇ X ⁇ 1), changing the molar ratio of S r and B a Manufacturing.
- the production of an oxynitride phosphor was performed under substantially the same conditions as in Example 1.
- the raw materials used were S r 3 N 2 , B a 3 N 2 , S i 3 N 4 , S i 0 2 and Eu 2 0 3 .
- S r 3 N 2 , B a 3 N 2 , S i 3 N 4 , S i 0 2 and Eu 2 0 3 are uniformly dispersed in a nitrogen atmosphere in a glove box. It mixed until it became. In Examples 10, 16 to 20, the £ ⁇ 1 concentration is 0.43 mo 1%.
- the above compounds were mixed and placed in a boron nitride crucible under an ammonia atmosphere, and firing was performed at about 1450 ° C. for about 5 hours.
- the target oxynitriding phosphor was manufactured.
- Table 4 shows the characteristics of Examples 21 to 24 of the oxynitride phosphor according to the present invention.
- FIG. 20 is a diagram showing the excitation spectrum of the oxynitride phosphors of Examples 21 to 24.
- FIG. 21 is a diagram showing the reflection spectrum of the oxynitride phosphors of Examples 21 to 24. Table 4
- Examples 21 to 24 are represented by C a x B a (1 - x) S i 2 0 2 N 2 : Eu (0 ⁇ X ⁇ 1), and manufactured by changing the molar ratio of C a to B a It is carried out.
- Examples 21 to 24 production of an oxynitride phosphor was performed under substantially the same conditions as in Example 1.
- Raw material was used Ca 3 N 2, Ba 3 N 2, S i 3 N 4, S i 0 2, Eu 2 ⁇ 3. After weighing the raw material to a predetermined quantity, the Ca 3 N 2, B a 3 N 2, S i 3 N 4, S i 0 2, Eu 2 0 3, in a nitrogen atmosphere, in a glove box, uniformly It was mixed until it became.
- the Eu concentration is 0.43 mol%.
- the above compounds were mixed and placed in a boron nitride crucible under an ammonia atmosphere, and firing was performed at about 1450 ° C. for about 5 hours.
- Example 21 The light emission luminance and the quantum efficiency of Examples 21 to 24 are expressed as relative values based on Example 21.
- Example 25 Structural analysis was carried out for the oxynitride phosphors of Examples 25 to 27.
- the yarn of Example 25 is C a Si 2 0 2 N 2 .
- the thread formation of Example 26 is S r S i 2 0 2 N 2 .
- the composition of Example 27 is B a Si 2 0 2 N 2
- FIG. 22 is a schematic view showing an orthorhombic system.
- FIG. 23 shows an X-ray diffraction pattern of the oxynitride phosphor of Example 25.
- FIG. 24 is a view showing an X-ray diffraction pattern of the Oxy nite tride phosphor of Example 26.
- FIG. 25 is a view showing an X-ray diffraction pattern of the oxide phosphor of Example 27.
- Example 28 Light Emitting Device
- the light emitting device (FIG. 1) of Example 28 was manufactured using the above-described oxynitride phosphor. As an excitation light source, a light emitting element having a light emission spectrum of 400 nm is used.
- the phosphors were Ca S i 2 0 2 N 2 : Eu of Example 1, C a 2 S i 5 N 8 : Eu, and (C a 0 .Eu 0 .. 5 , Mn 0. 2 ) Use 10 (P0 4 ) 6 C 1 2 and
- FIG. 26 is a plan view showing a light emitting device according to the present invention.
- FIG. 27 is a cross-sectional view showing AA ′ of the light emitting element according to the present invention.
- FIG. 28 is a diagram showing a light emission spectrum of the light emitting device of Example 28.
- FIG. 29 is a diagram showing chromaticity coordinates of the light emitting device of Example 28 according to the present invention.
- a substrate 201 made of sapphire (C-face) is set in a reaction container of MOVPE, and while flowing hydrogen, the temperature of the substrate 201 is raised to about 1050 ° C. to clean the substrate 201.
- Example 28 although a sapphire substrate is used as the substrate 201, as the substrate 201, a different kind of substrate different from a nitride semiconductor, or a nitride semiconductor substrate such as A 1 N, A 1 G a N, or G a N may be used.
- substrates include sapphire, spinel (an insulating substrate such as MgAl 2 O 4 , S i C (6 H, 4 H, 3 C) having the main surface as one of C-face, R-face and A-face.
- nitride semiconductors such as oxide substrates lattice-matched with ZnS, ZnO, GaAs, Si and nitride semiconductors
- Preferred different substrates include sapphire and spinel
- the different substrates may have an off-angle, in which case a step-like orphanded one is used for the underlayer 202 made of gallium nitride.
- a heterogeneous substrate it is preferable to grow a nitride semiconductor to be the base layer 202 before formation of the element structure on the heterogeneous substrate, and then polish the heterogeneous substrate, etc.
- the element structure may be formed as a single substrate of nitride semiconductor, or a method of removing a different type of substrate after formation of the element structure may be used.
- a substrate of a nitride semiconductor may be used.
- the temperature of the substrate 201 is lowered to 510 ° C.
- hydrogen is used as the carrier gas
- ammonia and TMG are used as the source gas
- a buffer layer (not shown) made of GaN on the substrate 201. Is grown to a thickness of about 100 angstroms.
- TMG is stopped, and the temperature of the substrate 201 is raised to 1050.degree.
- TMG and ammonia gas are used as source gases, and an undoped GaN layer is grown to a film thickness of 2.
- the n-type layer 203 made of GaN doped with Si by 4.5 ⁇ 10 18 Zcm 3 is similarly used as the n-type layer, using TMG as source gas, ammonia gas as impurity gas and silane gas as impurity gas.
- the n-side contact layer forming the side electrode 211 a is grown to a thickness of 3 im.
- a barrier layer made of S i dope G a N is grown to the thickness of 50 angstroms, followed by a temperature of 800 ° C, TMG, TMI, with ammonia undoped I 0. iGao.
- Well layer made of 7 N a Grow at a film thickness of 50 angst mouth nimes.
- the barrier layer of 4 layers and 3 layers of wells are alternately stacked in the order of barrier + well + barrier + well ' ⁇ + barrier to form an active layer 204 consisting of a multiple quantum well structure with a total film thickness of 350 angstroms. Grow up.
- a carrier confinement layer 205 is grown to a film thickness of 100 angstroms.
- a first p-type layer 206 made of GaN doped with p-type impurities is grown with a film thickness of 0. ⁇ using TMG, ammonia and C p 2 M g .
- a ⁇ -side contact layer 208 forming a ⁇ ⁇ -side electrode 210 on the surface is formed.
- the ⁇ -side contact layer 208 is grown on the current diffusion layer 207 with a 150 ⁇ -thick p-type GaN doped with Mg at 1 ⁇ 10 20 / cm 3 . Since the p-side contact layer 208 is a layer that forms the p-side electrode 210, it is desirable to have a high carrier concentration of 1 ⁇ 10 17 / cm 3 or more. If it is lower than 1 ⁇ 10 17 / cm 3, it tends to be difficult to obtain a desirable ceramic with the electrode. Furthermore, when the composition of the contact layer is GaN, it is easy to obtain an electrode material and a desirable ceramic.
- the temperature is lowered to room temperature, and the wafer is annealed at 700 ° C. in a reaction vessel in a nitrogen atmosphere to further reduce the resistance of the p-type layer.
- the wafer having the element structure formed therein is taken out of the apparatus, and the electrode forming process described below is performed.
- the wafer After annealing, the wafer is removed from the reaction vessel, and a predetermined mask is formed on the surface of the uppermost p-side contact layer 208, and RIE (reactive ion etching) is performed. At this position, etching is performed from the p-side contact layer 2 08 side to expose the surface of the n-side contact layer to form an electrode formation surface. .
- RIE reactive ion etching
- the p-side electrode 210 As the p-side electrode 210, N i and A u are sequentially stacked to form the p-side electrode 2 1 0 consisting of N i / A u. In addition, this p-side electrode 210 becomes an atomic electrode brought into ohmic contact with the second p-type layer and the p-side contact layer 2008.
- the formed electrode branch 2 10 0 a has a width of about 5 / z m for the stripe-like light emitting part 2 0 9 and a width of about 3 jm for the stripe-like electrode branch 2 0 a
- the light emitting portion 2 0 9 and the electrode branch 2 1 0 a are alternately formed.
- the p-side electrode 210 is formed in the region where the p-side pad electrode is to be formed, and is formed over the p-side pad electrode to conduct electricity. At this time, in the region where the p-side pad electrode is formed, only a part of the p-side electrode 210 is formed, and the p-side pad electrode 210 b is formed on the surface of the p-side contact layer 2 08 Then, a portion is formed over the p-side electrode 210 and electrically conducted.
- the surface of the p-side contact layer 2 0 8 on which the p-side pad electrode 2 1 0 b is provided is a Schottky junction without the ohmic contact between the p-side electrode 2 10 and the p- side contact layer 2 0 8
- a barrier is formed between the two, and from the formation portion of the p-side pad electrode 210, the current does not flow directly to the inside of the element, but passes through the electrically connected electrode branch 210a,
- the structure is such that current is injected into the element.
- an n-side electrode 21 1 a is formed on the exposed surface 20 3 a on which the n-type layer 203 is exposed.
- the n-side electrode 21 1 a is formed by laminating T i and A 1.
- the n-side electrode 21 1 a is a ceramic electrode in which the exposed surface 2 0 3 a of the n-type layer 2 0 3 is in ohmic contact.
- the p-side electrode 210 for the ceramic and the n-side electrode 21a are formed, they are annealed by heat treatment to form an ohmic contact with each electrode.
- the p-side ohmic electrode obtained at this time is an opaque film that hardly transmits the light emitted from the active layer 204.
- the entire surface excluding the part or all of the p-side electrode 210 and the n-side electrode 21a is exposed on the entire surface, that is, the exposed surface 20a of the n-type layer 203 and the exposed surface.
- An insulating film of SiO 2 is formed on the entire surface of the device, such as the side surface of the silicon substrate.
- pad electrodes for bonding are respectively formed on the surfaces of the p-side electrode 210 and the n-side electrode 21 1 a exposed from the insulating film, and electrical conduction is made to the electrodes for each ceramic.
- the p-side pad electrode 210 b n-side pad electrode 211 b is formed by laminating N i T i .A u on each of the electrodes for each ceramic.
- the substrate 201 is divided to obtain a light emitting element with a side length of 300 / m.
- the obtained light emitting device has an emission peak wavelength of about 400 nm.
- the characteristics of the light emitting device of Example 28 are shown in Table 5.
- the light emitting device of Example 28 shows a luminescent color in a white area.
- the light emitting apparatus of Example 28 shows a light emission spectrum having a light emission peak wavelength at 360 430 nm 430 500 nm 500 to 730 nm. More specifically, it shows emission spectrum having emission peak wavelength at 390 4 10 nm, 455 475 nm 550 600 nm.
- the phosphors excited by the light-emitting element excited at 400 nm were C a Si 2 0 2 N 2 Eu of Example 1 in the green region, C a 2 Si 5 N 8 E u in yellow. the red area, (C a 0. 93 Eu 0 .. s Mn 0 ..
- the light emitting device of Example 29 is a white light emitting device using a light emitting element having an emission peak wavelength of 460 nm as an excitation light source.
- the light emitting device of Example 29 also has the structure shown in FIG.
- n-type and A semiconductor layer 2 of an N layer is formed, an electrode 3 is provided on the n-type and p-type semiconductor layers 2, and the electrode 3 is conductively connected to a lead frame 13 by a conductive wire 14.
- the upper part of the light emitting element 10 is covered with the phosphor 11 and the coating member 12, and the outer periphery of the lead frame 1.3, the phosphor 11, the coating member 12 and the like is covered with the mold member 15.
- the semiconductor layer 2 is formed on a sapphire substrate 1 by n + GaN: Si, n-Al GaN: Si, n- GaN, GaInN QW s, p_GaN: Mg, pA 1 GaN: Mg, p-Ga N: stacked in the order of Mg.
- a part of the n + Ga N: Si layer is etched to form an n-type electrode.
- a p-type electrode is formed on the p-GaN: Mg layer.
- the lead frame 13 uses iron-containing copper. On the top of the mount lead 13a, a tip for loading the light emitting element 10 is provided, and the light emitting element 10 is die-pounded on the bottom of the substantially central portion of the cup.
- the coating member 12 a mixture of an epoxy resin, a diffusing agent, barium titanate, titanium oxide and the phosphor 11 in a predetermined ratio is used.
- the mold member 15 uses an epoxy resin.
- the bullet-shaped light emitting device 1 is a cylindrical member having a radius of 2 to 4 mm of a mold member 15 and a height of about 7 to 1 O mm, and a semispherical upper portion.
- the blue light emitting element 10 having an emission peak wavelength of approximately 460 nm emits light.
- This blue light is subjected to color tone conversion by the phosphor 11 covering the semiconductor layer 2.
- the light emitting device of Example 29 which emits white light.
- Phosphor 11 of the light emitting device of Example 29 according to the present invention, the oxynitride phosphor of Example 1, Ca S r S i 5 N 8: and the nitride phosphor represented by E u, the mixture The used phosphor 11 is used. The phosphor 11 is mixed with the coating member 12. In the light emitting device of Example 29, a part of the light of the light emitting element 10 is transmitted. In addition, a part of the light of the light emitting element 10 excites the phosphor 11, and the phosphor 11 performs wavelength conversion to obtain green of the oxynitride phosphor and yellow red to red of the nitride phosphor. Emits light. A light emitting device that emits white light by mixing the blue light of these 10 light emitting elements, the green light from the oxynitrite phosphor, and the yellow red to red light of the nitride phosphor. To provide Can.
- Example 3 0 Light emitting device>
- FIG. 30 is a view showing a cap type light emitting device of Example 30 according to the present invention.
- FIG. 30 showing the light emitting device of the embodiment 30 the same members as the members in the light emitting device of the embodiment 28 are designated by the same reference numerals, and the description thereof will be omitted.
- the light emitting element 10 uses a light emitting element having an emission peak wavelength at 40011 m.
- the light emitting device of Example 30 is constructed by covering the surface of the mold member 15 of the light emitting device of Example 28 with a cap 16 made of a light transmitting resin in which a phosphor (not shown) is dispersed. Ru.
- a cup for loading the light emitting element 10 is provided on the top of the mount lead 13a, and the light emitting element 10 is die-bonded to the bottom of the substantially central portion of the cup.
- the phosphor 11 is provided on the top of the cup so as to cover the light emitting element 10.
- only the cap 16 is May be contained. If the fluorescent substance 11 is not provided on the light emitting element 10, the fluorescent substance can be prevented from being directly affected by the heat generated in the light emitting element 10.
- the cap 16 further disperses the phosphor uniformly in the light transmitting resin.
- the light transmitting resin containing this phosphor is molded into a shape fitted to the shape of the mold member 15.
- a manufacturing method in which a light transmitting resin containing a phosphor is placed in a predetermined mold, and then the light emitting device 1 is pushed into the mold and molded.
- a transparent resin having excellent temperature characteristics such as epoxy resin, urea resin, silicone resin and the like, weather resistance, silica zonole, glass, inorganic binder and the like are used.
- thermosetting resins such as melamine resin and phenol resin can be used.
- thermoplastic resins such as polyethylene, polypropylene, polychlorinated polyethylene, polystyrene and the like, thermoplastic rubbers such as styrene-butadiene block copolymer, segmented polyurethane and the like can be used.
- a diffusing agent barium titanate, titanium oxide, aluminum oxide, etc. may be contained. Also, even if it contains light stabilizers and colorants, it is good.
- the oxynitrite fluorescent material of Example 3 is used as the fluorescent substance 11 used for the force of the mount lead 13a.
- an oxynitride phosphor may be contained in the cap 16, and the inside of the cup of the mount lead 13 a may be configured to have only the coating member 12.
- a part of the light emitted from the light emitting element 10 excites the oxynitride phosphor of the phosphor 11, and green light is emitted by the oxynitride phosphor. Further, a part of the light emitted from the light emitting element 10 or a part of the light emitted from the oxynitride phosphor excites the phosphor of the cap 16 to emit blue and yellow to red light. As a result, the green light of the oxynitride phosphor and the blue and yellow to red light of the phosphor of the cap 16 are mixed, and as a result, white light is emitted from the surface of the cap 16 to the outside. Ru.
- Examples 31 to 79 are each an example related to the oxynitride phosphor according to the present invention.
- FIG. 32 is a view showing a change in light emission efficiency due to a change in content of activator R contained in the composition of the oxynitride phosphor.
- the excitation light source is light near 400 nm.
- FIG. 33 is a graph showing a change in light emission efficiency due to a change in content of activator R contained in the composition of the oxynitride phosphor.
- the excitation light source is light near 460 nm.
- FIG. 34 is a C I E chromaticity diagram showing color tone change due to change in the content of activator R contained in the composition of the oxynitride phosphor.
- FIG. 35 is a C I E chromaticity diagram which is an enlarged view of FIG.
- FIG. 38 is a diagram showing the normalized excitation spectrum of the oxynitride phosphor.
- FIG. 39 is a view showing a reflection spectrum of the oxynitride phosphor.
- FIG. 40A is a photograph of the oxynitride phosphor of Example 36 taken at 1000 ⁇ magnification S EM ′
- FIG. 40B shows that the oxynitride phosphor of Example 36 is 5 It is a SEM photograph taken at 000 ⁇ .
- FIG. 40C is a SEM picture of the oxynitride phosphor of Example 36 taken at 10000 times.
- Example 32 0.015 0.340 0.612 87.2 87.8 87.3
- Example 33 0.02 0.341 0.612 95.1 95.5 94.9
- Example 34 0.025 0.345 0.609 97.3 97.5 96.9
- Example 35 0.03 0.349 0.608 97.7 98.1 97.9
- Example 36 0.035 0.356 0.604 100.0 100.0
- Example 37 0.04 0.356 0.604 97.9 98.4 98.5
- Example 38 0.045 0.363 0.600 97.4 97.7 97.9
- Example 39 50 67 0 7 0.5 9 6 0.590 89.0 90.1 91.2
- Example 41 0.08 0.387 0.584 89.6 91.1 92.4
- Example 42 0.1 0.2 0.405 0.571 85.5 88.1 90.4
- Example 44 0.14 0.416 84.8 88.8 91.5
- Example 45 0.18 0.422 0.558 84.8 89.5 92.4
- Implementation Example 46 0.18 0.425 0.556 79.9 84.3 87.0
- Example 47 0.2 0.430 0.552 76.5 79.5
- Example 48 0.22 0.438 0.546 71.7 76.3 79.5
- Example 49 0.24 0.543 68.8 73.7 7
- Examples 3 1 to 5 6 are S r S i 2 0 2 ⁇ 2 : E u.
- the light emission of the other example is based on Example 3 6 having the highest luminance, energy efficiency and quantum efficiency. Luminance, energy efficiency, quantum efficiency are shown by their relative values.
- the light emission luminances of the other examples are relative values based on Example 4 3 having the highest light emission luminance. Indicated. Also, based on the embodiment 45 with the highest energy efficiency and quantum efficiency, the energy efficiency and quantum efficiency of the other embodiments are It shows with the relative value.
- Sr 3 N 2 , S i 3 N 4 , S i 0 2 , and Eu 2 O 3 were weighed out and mixed to achieve this mixing ratio.
- the S r concentration of S r (1 ⁇ x ) Eu x S i 2 O 2 N 2 and the blending ratio of Eu were changed so as to achieve a predetermined molar ratio.
- the mixing ratio of Eu in the table indicates the molar ratio of Eu.
- the above compounds were mixed and placed in a boron nitride crucible under an ammonia atmosphere, and firing was carried out at about 1,500 ° C. for about 5 hours.
- the target oxynitride phosphor was obtained.
- the theoretical composition from the raw material blend ratio of the obtained oxynitride phosphor is S r (1 _ x) Eu x S i 2 2 0 2 N 2 (0 ⁇ X ⁇ 1).
- the weight percents of O and N of the oxynitride phosphor of Example 5 are measured, and the total amount thereof is 15.3% by weight of O, and 10.1% by weight of N. / 0 was included.
- the oxynitride phosphors according to Examples 1 to 56 are fired in an ammonia atmosphere using a crucible made of boron nitride.
- a metal crucible it is not very desirable to use a metal crucible.
- a ceramic crucible such as alumina.
- Each of the fired products of Examples 3 to 56 is a crystalline powder or particles.
- the particle size was approximately 1 to 5 ⁇ m.
- Excitation spectra of the oxynitride phosphors of Examples 3 to 6 were measured. As a result of the measurement, it is strongly excited at 2 90 nm to 4 90 nm.
- the mixing ratio of E u is increased, the color tone ⁇ shifts to the right and the color tone y shifts downward.
- the emission luminance gradually increased as the blending ratio of Eu was increased, and the emission luminance was the highest in Example 36.
- Examples 3 1 to 4 can provide an oxynitride phosphor having a desired color tone while maintaining high light emission luminance and high quantum efficiency.
- the blending ratio of E ti was increased, the light emission luminance gradually increased, and in the case of Example 43, the light emission luminance was the highest.
- the compounding ratio of E u is further increased, the light emission luminance decreases.
- the quantum efficiency gradually increased, and in Example 45, the quantum efficiency became the highest. If the compounding ratio of Eu is further increased, the quantum efficiency will decrease.
- Examples 32 to 51 can provide an oxynitride phosphor having a desired color tone while maintaining high light emission luminance and high quantum efficiency.
- the temperature characteristics of the oxynitride phosphors of Examples 3 1 to 5 6 were extremely good.
- the temperature characteristics are shown as relative luminance with the light emission luminance of 25 ° C. as 100%.
- the particle size is It is the value by the air permeation method called FSSS No. (Fisher Sub Sieve Sizer's No.).
- the temperature characteristics of Examples 31 to 56 are 85% or more at 100 ° C. At 200 ° C., it was 55% or more.
- FIG. 41 is a view showing the change of the light emission efficiency due to the change of the content of the activator R contained in the composition of the oxynitride phosphor.
- the excitation light source is light near 400 nm.
- FIG. 42 is a view showing a change in light emission efficiency due to a change in content of the activator R contained in the composition of the oxynitride phosphor.
- the excitation light source is light near 460 nm.
- FIG. 43 is a CIE chromaticity diagram showing the color tone change due to the change in the content of activator R contained in the composition of the oxynitride fluorescent substance.
- FIG. 44 is an expanded CIE chromaticity diagram of FIG.
- FIG. 47 is a diagram showing the excitation spectrum of the standardized oxynitrite fluorescent substance.
- FIG. 48 shows the reflection spectrum of the oxynitride phosphor.
- the emission brightness, energy efficiency, and quantum efficiency of the other example are the highest according to the example 5 8 as a reference.
- Energy efficiency and quantum efficiency are indicated by their relative values.
- 4 6 0 ⁇ When the examples 57 to 70 are irradiated with an excitation light source in the vicinity of m, the emission brightness, energy efficiency, and emission efficiency of the other examples with reference to the example 65 having the highest emission brightness, energy efficiency and quantum efficiency. Quantum efficiency is indicated by its relative value.
- Raw material was used Ca 3 N 2, S i 3 N 4, S I_ ⁇ 2, Eu 2 0 3. Using these raw materials in the same manner as in Example 31, the oxynitriding phosphors of Examples 57 to 70 were produced. The raw materials were produced at a predetermined molar ratio. The theoretical composition of the obtained oxynitride phosphor is Ca (1 _ x) Eu x Si 2 O 2 N 2 (0 ⁇ X ⁇ 1). A part of Ca is substituted by Eu. The mixing ratio of Eu in the table indicates the molar ratio of Eu.
- the weight percent of O and N of the oxynitride phosphor of Example 58 is measured to be 19.5 wt% of O in the total amount. / 0 , contained 17.5% by weight of N.
- the fired products of Examples 57 to 70 are all crystalline powder or granules.
- the particle size was approximately 1 to 8 m.
- the excitation spectrum of the oxynitriding materials of Examples 57 to 70 was measured. As a result of the measurement, it is strongly excited at 290 nm to 520 nm.
- the mixing ratio of E u is increased in the chromaticity coordinates, the color tone X shifts to the right and the color tone y shifts to the lower direction.
- the light emission luminance, energy efficiency and quantum efficiency are the highest in Example 58.
- Examples 57 to 67 can provide an oxynitride phosphor having a desired color tone while maintaining high emission luminance and high quantum efficiency.
- Examples 57 to 69 can provide an oxynitride fluorescent material having a desired color tone while maintaining high emission luminance and high quantum efficiency.
- FIG. 49 is a graph showing a change in peak intensity due to a change in the content of activator R contained in the composition of the oxynitride phosphor.
- the excitation light 3 ⁇ 41 is light near 400 nm and 460 nm.
- FIG. 50 is a graph showing a change in luminous efficiency due to a change in the content of activator R contained in the composition of the oxynitride phosphor.
- FIG. 53 is a diagram showing the normalized excitation spectrum of the oxynitride phosphor.
- FIG. 54 is a diagram showing the reflection spectrum of the oxynitride phosphor.
- Example 71 0. 01 495 0. 090 0. 458 100. 3
- Example 72 0. 02 496 0. 101 0. 485 100. 0
- Example 73 0. 03 497 0. 116 0. 507 90. 1
- Example 74 0. 04 498 0. 113 0. 504 89. 2
- Example 75 0. 05 499 0. 132 0. 521 83. 6
- Example 76 0. 1 498 0. 247 0. 477 22. 5
- Example 78 0. 2 531 0. 317 0. 599 5.
- 7 E u Luminance brilliance Energy Quantum efficiency Compounding ratio XY (%) Efficiency (%) Q (%)
- Example ⁇ 1 0. 01 90. 8 96. 6 96. 0
- Example 72 0. 02 100. 0 100. 0 100. 0
- Examples 71 to 78 are B a S i 2 0 2 N 2 : Eu.
- the peak intensity, emission luminance, energy efficiency and quantum efficiency of the other Examples are relative values based on Example 72. Show.
- the examples 71 to 78 are irradiated with an excitation light source near 460 nm, the peak intensities of the other examples are shown as relative values with reference to the example 72.
- the fired products of Examples 7 to 18 are all crystalline powder or particles.
- the particle size was approximately 1 to 8 ⁇ m.
- Excitation spectra of the oxynitride phosphors of Examples 1 to 7 were measured. As a result of the measurement, it is strongly excited to a wavelength range longer than 2 9 0 n m to 4 8 0 n m.
- the color tone X shifts to the right, and the color tone y shifts to the upper direction.
- the light emission luminance is highest in Example 75, and the energy efficiency and quantum efficiency are the highest in Example 72.
- Examples 7 1 to 7 can provide an oxynitride phosphor having a desired color tone while maintaining high emission luminance and high quantum efficiency.
- Example 7 1 to 7 8 were extremely good.
- the temperature characteristics of Example 7 1 to 7 8 are 90% or more at 100 ° C. When it was 200 ° C., it was 65% or more.
- FIG. 57 is a view showing an excitation spectrum of the oxynitride phosphor of Example 79.
- Fig. 58 shows Example 7
- FIG. 9 is a diagram showing the reflection spectrum of the oxynitrified phosphor of 9;
- FIG. 59A is a SEM photograph of the oxynitride phosphor of Example 79 taken at 1000 times.
- FIG. 59B is a SEM picture of the oxynitride phosphor of Example 79 taken at 10000 times.
- Example 79 used the following quantities of ingredients.
- the target oxynitride phosphor was obtained.
- the theoretical composition of the obtained oxynitride phosphor is C a S i 2 0 2 N 2 : Eu.
- Example 80 Light emitting device>
- the light-emitting device of Example 80 was manufactured using the above-described oxynitrite phosphor. As an excitation light source, a light emitting element having a light emission spectrum of 400 nm is used.
- the phosphor is Example 7 9 C a S i 2 0 2 N 2: E and u, C a 2 S i 5 N 8: E and u, (.. C a 0 93 E uo 05, Mn 0 .. 2) 10 (P0 4 ) Use 6 C 1 2
- the light emitting device of Example 80 has a structure shown in FIG.
- FIG. 26 is a plan view showing a light emitting device according to the present invention.
- FIG. 26 is a plan view showing a light emitting device according to the present invention.
- FIG. 27 is a cross-sectional view showing AA ′ of the light emitting element according to the present invention.
- FIG. 60 is a diagram showing a light emission spectrum of the light emitting device 1.
- FIG. 61 is a chromaticity diagram (JISZ 8110) showing the chromaticity coordinates of the light emitting device 1 according to the present invention.
- Example 80 In the light emitting device of Example 80, the same light emitting element as that used in the light emitting device of Example 28 was used.
- the light emitting device of Example 80 configured as described above exhibits a light emission color in a white range.
- the light emitting device of Example 80 shows a light emitting spectrum having a light emission peak wavelength in 360 to 43 0 nm, 4 30 to 500 nm, 500 to 7 30 nm. More specifically, it shows an emission spectrum having emission peak wavelengths at 3 9 0 to 4 10 nm, 4 5 5 to 4 7 5 nm, 5 5 0 to 6 00 nm.
- the phosphors excited by the light-emitting element excited at 400 nm are C a S i 2 0 2 N 2 : Eu of the example 7 9 in the green region and C a 2 S i 5 N 8 : E u the red region from yellow, (C a 0. 93, E u 0.. 5, Mn 0 .. 2) 10 (P o 4) 6 C 1 2 the blue and yellow-red region, respectively emission peak wavelength Have. Due to the mixture of light by these phosphors, the white-based region exhibits a luminescent color. By changing the blending amount of these phosphors, white light of various colors is emitted. Therefore, when a light emitting device having predetermined white light is manufactured using ultraviolet light as an excitation light source, it is possible to change the emission color only by changing the type of phosphor, the mixing ratio, and the like.
- Example 8 1 Light emitting device>
- the light emitting apparatus of Example 8 relates to a white light emitting apparatus using a light emitting element having an emission peak wavelength of 460 nm as an excitation light source, and the light emitting apparatus of Example 29 (structure in FIG. 1) is an example.
- the blue light emitting element 10 having an emission peak wavelength at approximately 460 nm emits light. This blue light is subjected to color tone conversion by the phosphor 11 covering the semiconductor layer 2. As a result, it is possible to provide the light emitting device of Example 81 which emits white light.
- the light emitting device of Example 81 part of the light of the light emitting element 10 is transmitted.
- a part of the light of the light emitting element 10 excites the fluorescent substance 11, and the fluorescent substance 11 performs wavelength conversion, and the green color of the oxynitride fluorescent substance and the yellow color of the nitride fluorescent substance It emits light from red to red.
- a light emitting device emitting white light by mixing the blue light from the light emitting element 10, the green light from the oxynitride phosphor, and the yellow red to red light of the nitride phosphor. be able to.
- the light emitting device of Example 82 is configured in the same manner as Example 30, except that the phosphor is changed as follows in the light emitting device of Example 30.
- all the phosphors may be contained in the cap 16 as in Example 30.
- Example 82 configured as above, a part of the light emitted from the light emitting element 10 excites the oxynitride phosphor of the phosphor 11 and emits green light. In addition, a part of the light emitted from the light emitting element 10 or a part of the light emitted from the oxynitride phosphor excites the phosphor of the cap 16 and emits blue and yellow to red. As a result, the green light of the oxynitride phosphor and the blue and yellow to red light of the phosphor of the cap 16 are mixed, and as a result, white light is emitted from the surface of the cap 16 to the outside. Released.
- FIG. 65 is a diagram showing an excitation spectrum of the oxynitride phosphors of Examples 83 to 87.
- FIG. 66 is a diagram showing a reflection spectrum of the oxynitrite phosphor of each of Examples 83 to 87.
- FIG. 67 is a SEM picture of the oxynitride phosphor of Example 83. Figure 67A was taken at 1000x and Figure 67B was taken at 5000x.
- Example 83 to 87 a part of B a is replaced with Eu, and the Eu concentration is changed.
- Example 83, B a 0. 97 Eu 0 .. 3 is a S i 2 0 2 N 2.
- Example 84 is: Ba 0. 95 E 0. 05 S i 2 0 2 N 2
- Example 85 is: Ba 0. 90 E u 0. 0 S i 2 0 2 N 2
- Example 86 is Ba 0. 85 Eu 0. 15 S i 2 0 2 N 2
- Example 87 is a B a 0. 80 Eu 0. 20 S i 2 0 2 N 2.
- Example 83 used the following quantities of raw materials to achieve the above composition.
- the above compounds were mixed, charged in a nitrogen nitride crucible in an ammonia atmosphere, and calcined at about 1,500 ° C. for about 5 hours.
- the target oxynitriding phosphor was obtained.
- the theoretical composition of the obtained oxynitridate phosphor is B a S i 2 0 2 N 2 : Eu.
- the oxynitrite fluorescent material according to the example uses a crucible made of boron nitride and is fired in an ammonia atmosphere. In fact, it is not very good to use metal chopsticks. This is because it is thought that if a metal crucible is used, it will be eroded and cause the deterioration of the light emission characteristics. Therefore, it is preferable to use ceramic made stainless steel such as alumina. '
- the raw materials were mixed and fired under the same conditions as in Example 83.
- the raw materials were mixed and fired under the same conditions as in Example 83.
- the raw materials were mixed and fired under the same conditions as in Example 83.
- Example 83 Under the same conditions as in Example 83, the raw materials were mixed and fired.
- the baked products of Examples 83 to 87 are all crystalline powder or granules.
- the particle size was approximately 1 to 5 m.
- Examples 83 to 87 show high absorptivity from 290 nm to 470 nm, Therefore, light from the excitation light source from 290 nm to 4 70 nm can be efficiently absorbed and wavelength conversion can be performed.
- Example 8 to 85 All of the oxynitrite phosphors of Examples 8 to 85 exhibited higher luminous efficiency than the conventional phosphors.
- the oxynitride phosphors of Examples 83 to 86 exhibited higher luminous efficiency than that of Example 87.
- the light emission luminance and quantum efficiency of Example 83 are represented as 100%, and the relative values are shown.
- Table 11 shows the temperature characteristics of the oxynitride phosphor of Example 83. The temperature characteristics are shown as relative luminance with the light emission luminance of 25 ° C. as 100%.
- the emission luminance is kept extremely high at 88.8%, and even if the temperature is further raised to 200 ° C., it is 64. 7%. , Maintaining high luminance.
- the oxynitride phosphor exhibits extremely good temperature characteristics.
- the light emitting device of Example 88 was manufactured using the oxynitride phosphor described above. As an excitation light source, a light emitting element having a light emission spectrum of 400 nm is used. Specifically, in the light emitting device of Example 28, as the phosphor 11, Ba S i 2 0 2 N 2 : Eu of Example 83, (Y, G d) 3 (A 1, G a)) 5 12 : C e, S r C a S i 5 N 8 : Eu, (C a 0. 93 , Eu 0. 05 , M 0. 02 ) 10 (P 0 4 ) 6 C 1 2 and It is configured the same as Example 28 except that it is used.
- FIG. 68 is a diagram showing a light emission spectrum (simulation) of the light emitting device of Example 88.
- FIG. 69 is a diagram showing the chromaticity coordinates (simulation) of the light emitting device of Examples 88 to 90.
- the color temperature is adjusted to 4000 to 5000K.
- Example 83 Eu has a peak emission wavelength at 47 0 nm ⁇ 5 30 nm. (C a 0. 93, Eu 0 .. 5, Mn 0. 02) 10 (P0 4) 6 C 1 2 has an emission peak wavelength in the 440-500 nm.
- Table 12 shows the characteristics and color rendering of the light emitting device of Example 88. However, the characteristics and color rendering of the light emitting device of Example 88 are simulation, and it is considered that self-absorption occurs and wavelength deviation occurs when actually manufactured.
- the light emitting device of Example 88 shows emission color in the white color range.
- the color tone can be easily changed by changing the compounding ratio of the phosphors.
- the average color rendering index (Ra) was 76.0, but in the white-based light emitting device according to Example 88, the average color-rendering index
- the (Ra) was extremely good at 88.1. Color rendering is improved from this.
- the special color rendering index (R1 to R15) has improved color rendering in almost all color charts.
- the white-based light emitting device shown in Comparative Example 1 has the special color rendering index (R 9) of ⁇ 1.9
- the white-based light emitting device according to Example 88 has the special color rendering index
- the light emitting devices of Examples 89 and 90 relate to a white light emitting device using a light emitting element having an emission peak wavelength of 460 nm as an excitation light source.
- the light emitting devices of Examples 89 and 90 are configured in the same manner as Example 29 except that the following phosphors were used as the phosphor 11 in the light emitting device of Example 29. 1).
- FIG. 70 is a view showing light emission spectra (simulations) of the fluorescent devices of Examples 89 and 90.
- the phosphor 11 used for the light emitting device of Examples 89 and 90 according to the present invention is the oxynitride phosphor of Example 8 3; (Y, Gd) 3 (A 1, Ga) 5 0 12 : Ce in the YAG fluorescent material represented, Ca S r S i 5 N 8: a phosphor obtained by mixing a nitride phosphor represented by E u, a.
- the phosphor 11 is mixed with the coating member 12. This compounding ratio can be changed appropriately.
- the blue light emitting element 10 having an emission peak wavelength at about 460 nm emits light.
- part of the light of the light emitting element 10 is transmitted.
- a part of the light of the light emitting element 10 excites the phosphor 11 to perform wavelength conversion, and the phosphor 11 has a predetermined emission wavelength.
- the phosphor 11 covering a part of the blue light from the light emitting element is subjected to color tone conversion.
- the light emitting devices of Examples 89 and 90 emitting white light can be provided.
- Table 13 shows the characteristics and color rendering of the light emitting devices of Examples 89 and 90.
- the characteristics and color rendering properties of the light emitting devices of Examples 89 and 90 shown here are simulations, and it is considered that self-absorption occurs and wavelength deviation occurs when actually manufactured.
- Examples 89 and 90 are light emitting spectra where the peak value is the same.
- the emission spectrum of the phosphor excited by the light of wavelength 460 nm from the light emitting element is as follows: in B a S i 2 0 2 N 2 : Eu of Example 83: (Y, Gd ) 3 (A 1, Ga) 5 0 12 : C e has an emission peak wavelength in the green to yellowish red region and S r Ca S i 5 N 8 : Eu in the yellowish red to redish region.
- the white-colored area shows a luminescent color.
- the light emitting devices of Examples 89 and 90 exhibit emission color in the white region as a whole.
- the color tone can be easily changed by changing the compounding ratio of the phosphors.
- the average color rendering index (Ra) was 76.0, but the present invention relates to Examples 89 and 90.
- the white light emitting devices were extremely good, with an average color rendering index (Ra) of 84.5 and 83.1. Color rendering is improved from this.
- the special color rendering index (R1 to R15) has improved color rendering in almost all color charts.
- the white-based light emitting device shown in Comparative Example 2 has the special color rendering index (R9) of -1.9
- the white-based light emitting devices according to Examples 89 and 90 have the special color-rendering evaluation.
- the numbers (R 9) were very good, 70.7 and 94.1.
- This special color rendering index (R9) is a red chip with relatively high saturation.
- the luminous efficiency is expressed as a relative value when the light emitting device of the comparative example is 100%.
- Example 91 Light Emitting Device
- the light emitting apparatus of Example 91 relates to a white light emitting apparatus using a light emitting element having an emission peak wavelength of 457 nm as an excitation light source.
- the basic structure is the structure shown in FIG. FIG. 71 is a diagram showing light emission spectra of the light emitting devices of Example 91 and Example 92.
- the blue light emitting element 10 having an emission peak wavelength of approximately 457 nm emits light. This blue light is subjected to color tone conversion by the phosphor 11 covering the semiconductor layer 2. As a result, it is possible to provide the light emitting device of Example 91 which emits white light.
- Example 83: Eu has a peak emission wavelength at 470 nm ⁇ 530 nm.
- S r C a S i 5 N 8 : Eu has an emission peak wavelength in the range of 580 nm to 730 nm.
- part of light of the light emitting element 10 is transmitted.
- a part of the light of the light emitting element 10 excites the phosphor 11 to perform wavelength conversion, and the phosphor 11 has a predetermined emission wavelength.
- a light emitting device can be provided that emits white light by mixing the blue light from the light emitting element 10 and the light from the phosphor 11.
- Table 14 shows the characteristics and color rendering of the light emitting device of Example 91.
- Example 83 Eu in the greenish region from blue-green, (Y, Gd) a ( A 1, Ga) 5 0 1 2: C e is the yellow-red region from green, S r C a S i 5 N 8: E u is the red region from yellow-red, each having a peak emission wavelength.
- a white-colored area is emitted. From this, the light emitting device of Example 91 shows a luminescent color in a white area.
- the white-based light-emitting device of Example 91 exhibits extremely high light-emitting characteristics with a lamp efficiency of 25.01 mZW.
- the white-based light-emitting device according to Example 91 had an extremely good color rendering index (Ra) of 92.7. From this, color rendering 1 "raw has been improved. Also, special color rendering In the evaluation numbers (R1 to R15), the color rendering property is improved in almost all color samples. Furthermore, the white-based light-emitting device according to Example 91 was extremely good, with a special color rendering index (R9) of 83.0.
- the white-based light-emitting device of Example 91 can provide a light-emitting device excellent in color rendering.
- Example 92 Light Emitting Device
- the light emitting apparatus of Example 92 relates to a white light emitting apparatus using the light emitting element having an emission peak wavelength of 463 nm as an excitation light source.
- the basic structure is the structure shown in FIG. FIG. 71 is a diagram showing light emission spectra of the light emitting devices of Example 91 and Example 92.
- the blue light emitting element 10 having an emission peak wavelength of approximately 463 nm emits light. This blue light is subjected to color tone conversion by the phosphor 11 covering the semiconductor layer 2. As a result, it is possible to provide the light emitting device of Example 92 which emits white light.
- Phosphor 11 used for the light-emitting device of Example 92, the oxynitride phosphor of Example 83, (Y, Gd) 3 (A 1, G a) 5 ⁇ 12: YAG phosphor represented by C e If, Ca S r S i 5 N 8: and the nitride phosphor represented by Eu, the phosphor 11 mixed is used. The phosphor 11 is mixed with the coating member 12. This compounding ratio can be changed appropriately. These phosphors 11 are irradiated with an excitation light source of Ex 463 nm. These phosphors 11 absorb light from the excitation light source, perform wavelength conversion, and have a predetermined emission wavelength.
- B a S i 2 0 2 N 2 : Eu is 470 ⁇ ! It has an emission peak wavelength of ⁇ 530 nm.
- S r C a S i 5 N 8 : Eu has an emission peak wavelength at 580 nm to 730 nm.
- a part of light of the light emitting element 10 is transmitted.
- a part of the light of the light emitting element 10 excites the phosphor 11 to perform wavelength conversion, and the phosphor 11 has a predetermined emission wavelength.
- Table 15 shows the characteristics and color rendering of the light emitting device of Example 92.
- the phosphors excited by the light-emitting element excited at 463 nm have the structures shown in Example 83 of B a S i 2 0 2 N 2 : Eu in the blue-green to green region, (Y, Gd) 3 (Al, Ga) 5 0 ⁇ 2 : Ce has a peak wavelength of effort from the green to yellowish red region, and S r C a S i 5 N 8 : Eu in the yellowish red to redish region.
- a white-colored area is emitted. From this, the light emitting device of Example 92 shows a luminescent color in a white area.
- the white-based light-emitting device of Example 92 exhibits a high light-emitting characteristic with a lamp efficiency of 21.3 mZW.
- the white-based light-emitting device according to Example 92 was extremely good, with an average color rendering index (R a) of 84.9. Color rendering is improved from this.
- the special color rendering index (R1 to R15) has improved color rendering in almost all color charts.
- the white-based light-emitting device according to Example 92 was extremely good, with a special color rendering index (R 9) of 91.0.
- the white-based light-emitting device of Example 92 provides a light-emitting device excellent in color rendering.
- Example 9 3 Light Emitting Device
- the light emitting device of Example 9-3 is a cap-type light emitting device similar to the light emitting device of Example 30, and the light emitting device of Example 30 is similar to that of Example 30 except that phosphor 11 is as follows.
- the configuration is the same as that of the third embodiment.
- the light emitting element 10 uses a light emitting element having a light emission peak wavelength at 400 nm.
- the phosphor 12 contains the phosphor of (C a 0.9 5 , E u 0 .. 5 ) 1 0 (P 0 4 ) 6 C 1 2 .
- the oxynitride phosphor may be contained in the cap 16, and the inside of the cup of the mount lead 13 a may be only the coating member 12.
- a part of the light emitted from the light emitting element 10 excites the oxynitride phosphor of the phosphor 11 and emits green light.
- a part of the light emitted from the light emitting element 10 or a part of the light emitted from the oxynitride phosphor excites the phosphor of the cap 16 to emit light from blue and yellow to red.
- the green light of the oxynitride fluorescent material and the blue and yellow to red light of the phosphor of the cap 16 are mixed, and as a result, white light is externally transmitted from the surface of the cap 16. Released into Industrial Applicability
- this Tsutomei absorbs light from an excitation light source having an emission wavelength in the short wavelength range of ultraviolet to visible light, and is an acid having an emission color different from the emission color from the excitation light source.
- the present invention relates to a nitride phosphor, and the oxynitride phosphor has a light emission peak wavelength in a bluish green to yellowish region, and has extremely high luminous efficiency. Also, the oxynitride phosphor is extremely excellent in temperature characteristics.
- the present invention is a manufacturing method capable of easily manufacturing such an oxynitride phosphor with high reproducibility.
- the present invention also relates to a light emitting device having the above-described oxynitride phosphor and a light emitting element, and the light emitting device can realize a desired light emission color.
- the above-mentioned oxynitride firefly A light emitting device can be manufactured by combining a light emitter and a phosphor that emits blue, green, red, yellow, etc., which is the second phosphor.
- the oxynitride phosphor, the YAG-based phosphor which is the second phosphor, and the blue light emitting element are combined.
- the present invention has extremely important technical significance that it can provide the light emitting device as described above.
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Luminescent Compositions (AREA)
- Led Device Packages (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03754118A EP1571194B1 (en) | 2002-10-16 | 2003-10-15 | Oxonitride phosphor and method for production thereof, and luminescent device using the oxonitride phosphor |
AU2003273003A AU2003273003A1 (en) | 2002-10-16 | 2003-10-15 | Oxonitride phosphor and method for production thereof, and luminescent device using the oxonitride phosphor |
US10/531,085 US7794624B2 (en) | 2002-10-16 | 2003-10-15 | Oxynitride phosphor and production process thereof, and light-emitting device using oxynitride phosphor |
US12/662,746 US7951306B2 (en) | 2002-10-16 | 2010-05-03 | Oxynitride phosphor and production process thereof, and light-emitting device using oxynitride phosphor |
US12/662,747 US7951307B2 (en) | 2002-10-16 | 2010-05-03 | Oxynitride phosphor and production process thereof, and light-emitting device using oxynitride phosphor |
US12/805,323 US7951308B2 (en) | 2002-10-16 | 2010-07-26 | Oxynitride phosphor and production process thereof, and light-emitting device using oxynitride phosphor |
Applications Claiming Priority (12)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002301637 | 2002-10-16 | ||
JP2002-301637 | 2002-10-16 | ||
JP2002-301636 | 2002-10-16 | ||
JP2002301636 | 2002-10-16 | ||
JP2002381025A JP2004210921A (ja) | 2002-12-27 | 2002-12-27 | オキシ窒化物蛍光体及びその製造方法並びにそれを用いた発光装置 |
JP2002-381025 | 2002-12-27 | ||
JP2003028611A JP4415548B2 (ja) | 2002-10-16 | 2003-02-05 | オキシ窒化物蛍光体を用いた発光装置 |
JP2003-28611 | 2003-02-05 | ||
JP2003028610A JP4415547B2 (ja) | 2002-10-16 | 2003-02-05 | オキシ窒化物蛍光体及びその製造方法 |
JP2003-28610 | 2003-02-05 | ||
JP2003070043A JP4442101B2 (ja) | 2003-03-14 | 2003-03-14 | 酸窒化物蛍光体及びそれを用いた発光装置 |
JP2003-70043 | 2003-03-14 |
Related Child Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10531085 A-371-Of-International | 2003-10-15 | ||
US12/662,746 Division US7951306B2 (en) | 2002-10-16 | 2010-05-03 | Oxynitride phosphor and production process thereof, and light-emitting device using oxynitride phosphor |
US12/662,747 Division US7951307B2 (en) | 2002-10-16 | 2010-05-03 | Oxynitride phosphor and production process thereof, and light-emitting device using oxynitride phosphor |
US12/805,323 Division US7951308B2 (en) | 2002-10-16 | 2010-07-26 | Oxynitride phosphor and production process thereof, and light-emitting device using oxynitride phosphor |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004039915A1 true WO2004039915A1 (ja) | 2004-05-13 |
Family
ID=32234482
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/013157 WO2004039915A1 (ja) | 2002-10-16 | 2003-10-15 | 酸窒化物蛍光体及びその製造方法並びにその酸窒化物蛍光体を用いた発光装置 |
Country Status (8)
Country | Link |
---|---|
US (4) | US7794624B2 (ja) |
EP (3) | EP2241608B1 (ja) |
KR (2) | KR100982617B1 (ja) |
AU (1) | AU2003273003A1 (ja) |
HK (3) | HK1107574A1 (ja) |
MY (1) | MY149573A (ja) |
TW (1) | TWI246203B (ja) |
WO (1) | WO2004039915A1 (ja) |
Cited By (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7138756B2 (en) | 2004-08-02 | 2006-11-21 | Dowa Mining Co., Ltd. | Phosphor for electron beam excitation and color display device using the same |
US7252788B2 (en) | 2004-02-27 | 2007-08-07 | Dowa Mining Co., Ltd. | Phosphor, light source and LED |
US7273568B2 (en) | 2004-06-25 | 2007-09-25 | Dowa Mining Co., Ltd. | Phosphor and production method of the same, method of shifting emission wavelength of phosphor, and light source and LED |
US7291289B2 (en) | 2004-05-14 | 2007-11-06 | Dowa Electronics Materials Co., Ltd. | Phosphor and production method of the same and light source and LED using the phosphor |
US7319195B2 (en) | 2003-11-28 | 2008-01-15 | Dowa Electronics Materials Co., Ltd. | Composite conductor, superconductive apparatus system, and composite conductor manufacturing method |
EP1895599A1 (en) * | 2005-06-15 | 2008-03-05 | Nichia Corporation | Light emitting device |
US7345418B2 (en) | 2004-08-27 | 2008-03-18 | Dowa Mining Co., Ltd. | Phosphor mixture and light emitting device using the same |
US7432647B2 (en) | 2004-07-09 | 2008-10-07 | Dowa Electronics Materials Co., Ltd. | Light source having phosphor including divalent trivalent and tetravalent elements |
US7434981B2 (en) | 2004-05-28 | 2008-10-14 | Dowa Electronics Materials Co., Ltd. | Manufacturing method of metal paste |
US7443094B2 (en) | 2005-03-31 | 2008-10-28 | Dowa Electronics Materials Co., Ltd. | Phosphor and manufacturing method of the same, and light emitting device using the phosphor |
US7445730B2 (en) | 2005-03-31 | 2008-11-04 | Dowa Electronics Materials Co., Ltd. | Phosphor and manufacturing method of the same, and light emitting device using the phosphor |
US7476336B2 (en) | 2005-04-28 | 2009-01-13 | Dowa Electronics Materials Co., Ltd. | Phosphor and manufacturing method for the same, and light emitting device using the phosphor |
US7476338B2 (en) | 2004-08-27 | 2009-01-13 | Dowa Electronics Materials Co., Ltd. | Phosphor and manufacturing method for the same, and light source |
US7477009B2 (en) | 2005-03-01 | 2009-01-13 | Dowa Electronics Materials Co., Ltd. | Phosphor mixture and light emitting device |
US7476335B2 (en) | 2004-08-20 | 2009-01-13 | Dowa Electronics Materials Co., Ltd. | Phosphor and manufacturing method therefore, and light source using the phosphor |
US7476337B2 (en) | 2004-07-28 | 2009-01-13 | Dowa Electronics Materials Co., Ltd. | Phosphor and manufacturing method for the same, and light source |
WO2009017206A1 (ja) | 2007-08-01 | 2009-02-05 | Mitsubishi Chemical Corporation | 蛍光体及びその製造方法、結晶性窒化珪素及びその製造方法、蛍光体含有組成物、並びに、該蛍光体を用いた発光装置、画像表示装置及び照明装置 |
US7514860B2 (en) | 2004-10-28 | 2009-04-07 | Dowa Electronics Materials Co., Ltd. | Phosphor mixture and light emitting device |
US7524437B2 (en) | 2005-03-04 | 2009-04-28 | Dowa Electronics Materials Co., Ltd. | Phosphor and manufacturing method of the same, and light emitting device using the phosphor |
US7527748B2 (en) | 2004-08-02 | 2009-05-05 | Dowa Electronics Materials Co., Ltd. | Phosphor and phosphor film for electron beam excitation and color display apparatus using the same |
US7550095B2 (en) * | 2003-09-24 | 2009-06-23 | Patent-Treuhand-Gesellschaft für elektrische Glü hlampen mbH | Highly efficient luminous substance |
US7649309B2 (en) | 2004-10-21 | 2010-01-19 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Highly efficient stable oxynitride phosphor |
US7833436B2 (en) | 2006-02-02 | 2010-11-16 | Mitsubishi Chemical Corporation | Multinary oxynitride phosphor, and light emitting device, image display, illuminating device and phosphor-containing composition using the same, and multinary oxynitride |
US7897064B2 (en) * | 2004-09-09 | 2011-03-01 | Showa Denko K.K. | Oxynitride-based fluorescent material and method for production thereof |
US7901592B2 (en) * | 2005-02-17 | 2011-03-08 | Koninklijke Philips Electronics N.V. | Illumination system comprising a green-emitting ceramic luminescence converter |
EP2366755A2 (de) | 2006-02-22 | 2011-09-21 | Osram Gesellschaft mit Beschränkter Haftung | Leuchtstoff und Lichtquelle mit derartigem Leuchtstoff sowie Herstellverfahren für den Leuchtstoff |
CN102559173A (zh) * | 2011-12-27 | 2012-07-11 | 江苏博睿光电有限公司 | 核-表层梯度式氮氧化物荧光粉及制造方法和采用该荧光粉的发光器件 |
CN105838371A (zh) * | 2016-04-27 | 2016-08-10 | 山东盈光新材料有限公司 | 一种led用氮氧化物荧光粉及制备方法 |
JPWO2014119146A1 (ja) * | 2013-01-31 | 2017-01-26 | シャープ株式会社 | 発光装置の製造方法及び発光装置 |
JP2017509735A (ja) * | 2014-01-09 | 2017-04-06 | メルク パテント ゲゼルシャフト ミット ベシュレンクテル ハフツングMerck Patent Gesellschaft mit beschraenkter Haftung | ユーロピウムドープアルカリ土類金属シリコオキシナイトライドベースの蛍光体 |
US9666767B2 (en) | 2012-07-25 | 2017-05-30 | National Institute For Materials Science | Fluorophore, method for producing same, light-emitting device using fluorophore, image display device, pigment, and ultraviolet absorbent |
Families Citing this family (87)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004013916A1 (ja) | 2002-08-01 | 2004-02-12 | Nichia Corporation | 半導体発光素子及びその製造方法並びにそれを用いた発光装置 |
MY149573A (en) * | 2002-10-16 | 2013-09-13 | Nichia Corp | Oxynitride phosphor and production process thereof, and light-emitting device using oxynitride phosphor |
EP1510564A1 (en) * | 2003-08-27 | 2005-03-02 | Fuji Photo Film Co., Ltd. | Radiation image storage panel |
US7723740B2 (en) * | 2003-09-18 | 2010-05-25 | Nichia Corporation | Light emitting device |
JP3837588B2 (ja) | 2003-11-26 | 2006-10-25 | 独立行政法人物質・材料研究機構 | 蛍光体と蛍光体を用いた発光器具 |
JP3931239B2 (ja) * | 2004-02-18 | 2007-06-13 | 独立行政法人物質・材料研究機構 | 発光素子及び照明器具 |
US7391060B2 (en) | 2004-04-27 | 2008-06-24 | Matsushita Electric Industrial Co., Ltd. | Phosphor composition and method for producing the same, and light-emitting device using the same |
KR100655894B1 (ko) * | 2004-05-06 | 2006-12-08 | 서울옵토디바이스주식회사 | 색온도 및 연색성이 우수한 파장변환 발광장치 |
KR100658700B1 (ko) | 2004-05-13 | 2006-12-15 | 서울옵토디바이스주식회사 | Rgb 발광소자와 형광체를 조합한 발광장치 |
US7361938B2 (en) | 2004-06-03 | 2008-04-22 | Philips Lumileds Lighting Company Llc | Luminescent ceramic for a light emitting device |
KR100665298B1 (ko) * | 2004-06-10 | 2007-01-04 | 서울반도체 주식회사 | 발광장치 |
US8318044B2 (en) * | 2004-06-10 | 2012-11-27 | Seoul Semiconductor Co., Ltd. | Light emitting device |
KR100665299B1 (ko) | 2004-06-10 | 2007-01-04 | 서울반도체 주식회사 | 발광물질 |
JP2006086469A (ja) * | 2004-09-17 | 2006-03-30 | Matsushita Electric Ind Co Ltd | 半導体発光装置、照明モジュール、照明装置及び半導体発光装置の製造方法 |
JP2006156837A (ja) * | 2004-11-30 | 2006-06-15 | Matsushita Electric Ind Co Ltd | 半導体発光装置、発光モジュール、および照明装置 |
US7745814B2 (en) * | 2004-12-09 | 2010-06-29 | 3M Innovative Properties Company | Polychromatic LED's and related semiconductor devices |
US7719015B2 (en) * | 2004-12-09 | 2010-05-18 | 3M Innovative Properties Company | Type II broadband or polychromatic LED's |
US7402831B2 (en) * | 2004-12-09 | 2008-07-22 | 3M Innovative Properties Company | Adapting short-wavelength LED's for polychromatic, broadband, or “white” emission |
JP2006213910A (ja) * | 2005-01-06 | 2006-08-17 | Matsushita Electric Ind Co Ltd | 酸窒化物蛍光体及び発光装置 |
US7341878B2 (en) * | 2005-03-14 | 2008-03-11 | Philips Lumileds Lighting Company, Llc | Wavelength-converted semiconductor light emitting device |
US7824573B2 (en) | 2005-04-01 | 2010-11-02 | Mitsubishi Chemical Corporation | Alloy powder for material of inorganic functional material precursor and phosphor |
CN100403563C (zh) * | 2005-04-18 | 2008-07-16 | 光宝科技股份有限公司 | 白光发光二极管元件及相关荧光粉与制备方法 |
US7994702B2 (en) | 2005-04-27 | 2011-08-09 | Prysm, Inc. | Scanning beams displays based on light-emitting screens having phosphors |
KR100704492B1 (ko) * | 2005-05-02 | 2007-04-09 | 한국화학연구원 | 형광체를 이용한 백색 발광 다이오드의 제조 방법 |
CN100454591C (zh) * | 2005-05-10 | 2009-01-21 | 光宝科技股份有限公司 | 包含荧光粉的发光二极管元件 |
US20070040182A1 (en) * | 2005-08-16 | 2007-02-22 | Julian Lee | Light emitting diode packaging structure |
KR101055772B1 (ko) * | 2005-12-15 | 2011-08-11 | 서울반도체 주식회사 | 발광장치 |
KR100809639B1 (ko) * | 2006-02-20 | 2008-03-05 | 특허법인 맥 | 혼합 형광체 및 이를 이용한 백색 발광 장치 |
KR100875443B1 (ko) | 2006-03-31 | 2008-12-23 | 서울반도체 주식회사 | 발광 장치 |
KR100731678B1 (ko) * | 2006-05-08 | 2007-06-22 | 서울반도체 주식회사 | 칩형 발광 다이오드 패키지 및 그것을 갖는 발광 장치 |
AU2007256972A1 (en) | 2006-05-30 | 2007-12-13 | University Of Georgia Research Foundation | White phosphors, methods of making white phosphors, white light emitting leds, methods of making white light emitting LEDs, and light bulb structures |
CN101467271B (zh) * | 2006-06-12 | 2012-04-25 | 3M创新有限公司 | 具有再发光半导体构造和会聚光学元件的led装置 |
US20070284565A1 (en) * | 2006-06-12 | 2007-12-13 | 3M Innovative Properties Company | Led device with re-emitting semiconductor construction and optical element |
US7952110B2 (en) * | 2006-06-12 | 2011-05-31 | 3M Innovative Properties Company | LED device with re-emitting semiconductor construction and converging optical element |
US7902542B2 (en) * | 2006-06-14 | 2011-03-08 | 3M Innovative Properties Company | Adapted LED device with re-emitting semiconductor construction |
KR101258227B1 (ko) * | 2006-08-29 | 2013-04-25 | 서울반도체 주식회사 | 발광 소자 |
JP2008135725A (ja) * | 2006-10-31 | 2008-06-12 | Toshiba Corp | 半導体発光装置 |
JP4266234B2 (ja) * | 2007-03-29 | 2009-05-20 | 株式会社東芝 | 半導体発光装置の製造方法 |
EP2009077A1 (en) * | 2007-06-29 | 2008-12-31 | Leuchtstoffwerk Breitungen GmbH | Manganese-doped metal-silicon-nitrides phosphors |
CN101157854B (zh) * | 2007-07-02 | 2010-10-13 | 北京宇极科技发展有限公司 | 一种氮氧化合物发光材料、其制备方法及其应用 |
RU2467051C2 (ru) | 2007-08-22 | 2012-11-20 | Сеул Семикондактор Ко., Лтд. | Люминофоры на основе нестехиометрических тетрагональных силикатов меди и щелочноземельного металла и способ их получения |
CN101378103A (zh) * | 2007-08-28 | 2009-03-04 | 富士迈半导体精密工业(上海)有限公司 | 白光发光装置及其制作方法 |
KR101055769B1 (ko) | 2007-08-28 | 2011-08-11 | 서울반도체 주식회사 | 비화학양론적 정방정계 알칼리 토류 실리케이트 형광체를채택한 발광 장치 |
JP5183128B2 (ja) | 2007-08-30 | 2013-04-17 | 凸版印刷株式会社 | 液晶表示装置 |
DE102007057710B4 (de) * | 2007-09-28 | 2024-03-14 | OSRAM Opto Semiconductors Gesellschaft mit beschränkter Haftung | Strahlungsemittierendes Bauelement mit Konversionselement |
DE102008058295A1 (de) | 2008-11-20 | 2010-05-27 | Osram Gesellschaft mit beschränkter Haftung | Rot emittierender Leuchtstoff aus der Klasse der Nitridosilikate und Lichtquelle mit derartigem Leuchtstoff sowie Verfahren zur Herstellung des Leuchtstoffs |
WO2010074391A1 (ko) | 2008-12-22 | 2010-07-01 | 금호전기주식회사 | 산질화물 형광체, 그 제조방법 및 발광장치 |
KR100919315B1 (ko) * | 2008-12-22 | 2009-10-01 | 금호전기주식회사 | 산질화물 형광체, 그 제조방법 및 발광장치 |
EP2412038B1 (en) * | 2009-03-19 | 2019-01-02 | Philips Lighting Holding B.V. | Illumination device with remote luminescent material |
CA2758018C (en) * | 2009-04-06 | 2017-07-04 | Koninklijke Philips Electronics N.V. | Luminescent converter for a phosphor-enhanced light source comprising organic and inorganic phosphors |
DE102009030205A1 (de) * | 2009-06-24 | 2010-12-30 | Litec-Lp Gmbh | Leuchtstoffe mit Eu(II)-dotierten silikatischen Luminophore |
KR101055762B1 (ko) * | 2009-09-01 | 2011-08-11 | 서울반도체 주식회사 | 옥시오소실리케이트 발광체를 갖는 발광 물질을 채택한 발광 장치 |
KR20110000286A (ko) * | 2009-06-26 | 2011-01-03 | 삼성전자주식회사 | (옥시)나이트라이드 형광체의 제조방법, 이로부터 얻어진 (옥시)나이트라이드 형광체 및 이를 구비한 백색 발광 소자 |
KR101172143B1 (ko) * | 2009-08-10 | 2012-08-07 | 엘지이노텍 주식회사 | 백색 발광다이오드 소자용 시온계 산화질화물 형광체, 그의 제조방법 및 그를 이용한 백색 led 소자 |
US9909058B2 (en) * | 2009-09-02 | 2018-03-06 | Lg Innotek Co., Ltd. | Phosphor, phosphor manufacturing method, and white light emitting device |
KR101163902B1 (ko) * | 2010-08-10 | 2012-07-09 | 엘지이노텍 주식회사 | 발광 소자 |
KR20110050206A (ko) * | 2009-11-06 | 2011-05-13 | 삼성전자주식회사 | 옥시나이트라이드 형광체, 그 제조 방법 및 그것을 사용한 백색 발광 소자 |
TW201202391A (en) * | 2010-07-14 | 2012-01-16 | Forward Electronics Co Ltd | Phosphor composition for AC LED and AC LED manufactured by using the same |
US20120019126A1 (en) * | 2010-07-22 | 2012-01-26 | General Electric Company | Oxynitride phosphors, method of preparation, and light emitting instrument |
KR20140043055A (ko) * | 2011-01-14 | 2014-04-08 | 라이트스케이프 머티어리얼스, 인코포레이티드 | 카보니트라이드 및 카바이도니트라이드 형광체 및 이를 사용한 발광 장치 |
WO2012120433A1 (en) * | 2011-03-10 | 2012-09-13 | Koninklijke Philips Electronics N.V. | Phosphor composition for leds |
CN102796517B (zh) * | 2011-05-23 | 2015-02-04 | 海洋王照明科技股份有限公司 | 一种含氮硅酸镁薄膜及其制备方法和应用 |
KR101389089B1 (ko) | 2011-06-16 | 2014-04-29 | 한국화학연구원 | 금속실리콘산질화물계 형광체를 이용한 실리콘질화물계 형광체의 제조 방법 |
JP5373859B2 (ja) * | 2011-07-05 | 2013-12-18 | デクセリアルズ株式会社 | 照明装置 |
DE102011115879A1 (de) * | 2011-10-12 | 2013-04-18 | Osram Opto Semiconductors Gmbh | Optoelektronisches Bauelement und Leuchtstoffe |
KR101890185B1 (ko) * | 2012-01-27 | 2018-08-21 | 엘지이노텍 주식회사 | 형광체 및 발광 장치 |
US8471460B1 (en) | 2012-04-05 | 2013-06-25 | Epistar Corporation | Phosphor |
TWI494413B (zh) | 2012-12-22 | 2015-08-01 | Chi Mei Corp | 螢光體與發光裝置 |
KR101439735B1 (ko) * | 2013-01-23 | 2014-09-17 | 주식회사 효성 | 녹색 형광체의 제조 방법 |
TWI464238B (zh) * | 2013-03-27 | 2014-12-11 | Chi Mei Corp | 螢光體與發光裝置 |
TWI464236B (zh) * | 2013-03-27 | 2014-12-11 | Chi Mei Corp | 螢光體粒子與發光裝置 |
JP2014224182A (ja) * | 2013-05-15 | 2014-12-04 | 株式会社東芝 | 蛍光体、発光装置、および蛍光体の製造方法 |
TWI626395B (zh) | 2013-06-11 | 2018-06-11 | 晶元光電股份有限公司 | 發光裝置 |
US9416313B2 (en) | 2013-08-22 | 2016-08-16 | Panasonic Intellectual Property Management Co., Ltd. | Yellow fluorescent substance, light-emitting device, illumination device, and vehicle |
RU2672747C2 (ru) | 2013-10-08 | 2018-11-19 | Осрам Опто Семикондакторз Гмбх | Люминофор, способ получения люминофора и применение люминофора |
US10069046B2 (en) * | 2013-11-13 | 2018-09-04 | Lg Innotek Co., Ltd. | Bluish green phosphor and light emitting device package including the same |
KR102214065B1 (ko) * | 2014-02-20 | 2021-02-09 | 엘지전자 주식회사 | 산 질화물 형광체, 그 제조 방법 및 이를 이용한 발광 소자 패키지 |
KR102214067B1 (ko) * | 2014-02-27 | 2021-02-09 | 엘지전자 주식회사 | 산 질화물 형광체, 그 제조 방법 및 이를 이용한 발광 소자 패키지 |
JP6156440B2 (ja) * | 2014-05-30 | 2017-07-05 | 日亜化学工業株式会社 | 赤色発光蛍光体及びこれを用いた発光装置 |
KR101528104B1 (ko) * | 2014-06-11 | 2015-06-11 | 주식회사 효성 | 신뢰성이 개선된 산질화물 형광체, 그 제조방법, 및 이를 포함하는 백색 발광 소자 |
JP6296024B2 (ja) * | 2015-08-28 | 2018-03-20 | 日亜化学工業株式会社 | 半導体レーザ装置 |
DE102016124366A1 (de) * | 2016-12-14 | 2018-06-14 | Osram Gmbh | Optoelektronisches Bauelement |
CN111712934B (zh) * | 2018-01-19 | 2022-05-03 | 亮锐控股有限公司 | 用于发光设备的波长转换材料 |
KR102307653B1 (ko) * | 2019-12-11 | 2021-10-05 | 한국산업기술대학교산학협력단 | 형광체 세라믹 플레이트 제조방법 및 그로부터 제조된 형광체 세라믹 플레이트 |
KR102599819B1 (ko) | 2022-01-20 | 2023-11-08 | 미쯔비시 케미컬 주식회사 | 형광체, 발광 장치, 조명 장치, 화상 표시 장치 및 차량용 표시등 |
EP4293732A4 (en) | 2022-01-20 | 2024-05-15 | Mitsubishi Chemical Corporation | PHOSPHOR, LIGHT-EMITTING DEVICE, LIGHTING DEVICE, IMAGE DISPLAY DEVICE AND INDICATOR LIGHT FOR VEHICLES |
TWI831680B (zh) * | 2023-04-27 | 2024-02-01 | 隆達電子股份有限公司 | 光轉換材料及包括其的發光裝置與顯示裝置 |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0155047A1 (en) * | 1984-03-01 | 1985-09-18 | Koninklijke Philips Electronics N.V. | Luminescent screen |
EP0206389A1 (en) * | 1985-06-04 | 1986-12-30 | Koninklijke Philips Electronics N.V. | Luminescent screen and low-pressure mercury vapour discharge lamp provided with such a screen |
EP0206393A1 (en) * | 1985-06-04 | 1986-12-30 | Koninklijke Philips Electronics N.V. | Luminescent screen and low-pressure mercury vapour discharge lamp provided with such a screen |
JP2001214162A (ja) * | 2000-02-02 | 2001-08-07 | Japan Science & Technology Corp | オキシ窒化物ガラスを母体材料とした蛍光体 |
US20020043926A1 (en) * | 2000-08-28 | 2002-04-18 | Toyoda Gosei Co., Ltd. | Light-emitting unit |
EP1264873A2 (en) * | 2001-06-07 | 2002-12-11 | National Institute for Materials Science | Oxynitride phosphor activated by a rare earth element, and sialon type phosphor |
JP2003124527A (ja) * | 2001-07-16 | 2003-04-25 | Patent Treuhand Ges Elektr Gluehlamp Mbh | 光源として少なくとも1つのledを備えた照明ユニット |
JP2003203504A (ja) * | 2001-09-20 | 2003-07-18 | Patent Treuhand Ges Elektr Gluehlamp Mbh | 光源として少なくとも1つのledを備えた照明ユニット |
JP2003206481A (ja) * | 2001-09-25 | 2003-07-22 | Patent Treuhand Ges Elektr Gluehlamp Mbh | 光源として少なくとも1つのledを備えた照明ユニット |
JP2004010786A (ja) * | 2002-06-07 | 2004-01-15 | Nichia Chem Ind Ltd | 蛍光体 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1104799A1 (en) | 1999-11-30 | 2001-06-06 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Red emitting luminescent material |
JP3726131B2 (ja) | 2002-05-23 | 2005-12-14 | 独立行政法人物質・材料研究機構 | サイアロン系蛍光体 |
JP3668770B2 (ja) | 2001-06-07 | 2005-07-06 | 独立行政法人物質・材料研究機構 | 希土類元素を付活させた酸窒化物蛍光体 |
CA2466141C (en) * | 2002-01-28 | 2012-12-04 | Nichia Corporation | Nitride semiconductor device having support substrate and its manufacturing method |
EP1413618A1 (en) * | 2002-09-24 | 2004-04-28 | Osram Opto Semiconductors GmbH | Luminescent material, especially for LED application |
EP1413619A1 (en) | 2002-09-24 | 2004-04-28 | Osram Opto Semiconductors GmbH | Luminescent material, especially for LED application |
US6717353B1 (en) * | 2002-10-14 | 2004-04-06 | Lumileds Lighting U.S., Llc | Phosphor converted light emitting device |
ATE329479T1 (de) | 2002-10-14 | 2006-06-15 | Koninkl Philips Electronics Nv | Lichtemittierendes bauelement mit einem eu(ii)- aktivierten leuchtstoff |
MY149573A (en) * | 2002-10-16 | 2013-09-13 | Nichia Corp | Oxynitride phosphor and production process thereof, and light-emitting device using oxynitride phosphor |
WO2005045881A1 (en) * | 2003-11-11 | 2005-05-19 | Koninklijke Philips Electronics N.V. | Low-pressure vapor discharge lamp with a mercury-free gas filling |
JP4991027B2 (ja) | 2005-12-26 | 2012-08-01 | 日亜化学工業株式会社 | オキシ窒化物蛍光体及びそれを用いた発光装置 |
-
2003
- 2003-10-14 MY MYPI20033911 patent/MY149573A/en unknown
- 2003-10-15 EP EP10165445.7A patent/EP2241608B1/en not_active Expired - Lifetime
- 2003-10-15 EP EP20100165443 patent/EP2241607B1/en not_active Expired - Lifetime
- 2003-10-15 AU AU2003273003A patent/AU2003273003A1/en not_active Abandoned
- 2003-10-15 US US10/531,085 patent/US7794624B2/en active Active
- 2003-10-15 KR KR1020107007296A patent/KR100982617B1/ko active IP Right Grant
- 2003-10-15 TW TW92128554A patent/TWI246203B/zh not_active IP Right Cessation
- 2003-10-15 KR KR20057006594A patent/KR100993692B1/ko active IP Right Grant
- 2003-10-15 WO PCT/JP2003/013157 patent/WO2004039915A1/ja active Application Filing
- 2003-10-15 EP EP03754118A patent/EP1571194B1/en not_active Expired - Lifetime
-
2008
- 2008-01-07 HK HK08100128A patent/HK1107574A1/xx not_active IP Right Cessation
- 2008-01-07 HK HK08100127A patent/HK1106268A1/xx not_active IP Right Cessation
- 2008-03-08 HK HK08102729A patent/HK1108710A1/xx not_active IP Right Cessation
-
2010
- 2010-05-03 US US12/662,747 patent/US7951307B2/en not_active Expired - Fee Related
- 2010-05-03 US US12/662,746 patent/US7951306B2/en not_active Expired - Fee Related
- 2010-07-26 US US12/805,323 patent/US7951308B2/en not_active Expired - Fee Related
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0155047A1 (en) * | 1984-03-01 | 1985-09-18 | Koninklijke Philips Electronics N.V. | Luminescent screen |
EP0206389A1 (en) * | 1985-06-04 | 1986-12-30 | Koninklijke Philips Electronics N.V. | Luminescent screen and low-pressure mercury vapour discharge lamp provided with such a screen |
EP0206393A1 (en) * | 1985-06-04 | 1986-12-30 | Koninklijke Philips Electronics N.V. | Luminescent screen and low-pressure mercury vapour discharge lamp provided with such a screen |
JP2001214162A (ja) * | 2000-02-02 | 2001-08-07 | Japan Science & Technology Corp | オキシ窒化物ガラスを母体材料とした蛍光体 |
US20020043926A1 (en) * | 2000-08-28 | 2002-04-18 | Toyoda Gosei Co., Ltd. | Light-emitting unit |
EP1264873A2 (en) * | 2001-06-07 | 2002-12-11 | National Institute for Materials Science | Oxynitride phosphor activated by a rare earth element, and sialon type phosphor |
JP2003124527A (ja) * | 2001-07-16 | 2003-04-25 | Patent Treuhand Ges Elektr Gluehlamp Mbh | 光源として少なくとも1つのledを備えた照明ユニット |
JP2003203504A (ja) * | 2001-09-20 | 2003-07-18 | Patent Treuhand Ges Elektr Gluehlamp Mbh | 光源として少なくとも1つのledを備えた照明ユニット |
JP2003206481A (ja) * | 2001-09-25 | 2003-07-22 | Patent Treuhand Ges Elektr Gluehlamp Mbh | 光源として少なくとも1つのledを備えた照明ユニット |
JP2004010786A (ja) * | 2002-06-07 | 2004-01-15 | Nichia Chem Ind Ltd | 蛍光体 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1571194A4 * |
Cited By (43)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7550095B2 (en) * | 2003-09-24 | 2009-06-23 | Patent-Treuhand-Gesellschaft für elektrische Glü hlampen mbH | Highly efficient luminous substance |
US7319195B2 (en) | 2003-11-28 | 2008-01-15 | Dowa Electronics Materials Co., Ltd. | Composite conductor, superconductive apparatus system, and composite conductor manufacturing method |
US7252788B2 (en) | 2004-02-27 | 2007-08-07 | Dowa Mining Co., Ltd. | Phosphor, light source and LED |
US7291289B2 (en) | 2004-05-14 | 2007-11-06 | Dowa Electronics Materials Co., Ltd. | Phosphor and production method of the same and light source and LED using the phosphor |
US7434981B2 (en) | 2004-05-28 | 2008-10-14 | Dowa Electronics Materials Co., Ltd. | Manufacturing method of metal paste |
US7273568B2 (en) | 2004-06-25 | 2007-09-25 | Dowa Mining Co., Ltd. | Phosphor and production method of the same, method of shifting emission wavelength of phosphor, and light source and LED |
USRE44996E1 (en) * | 2004-06-25 | 2014-07-08 | Nichia Corporation | Phosphor and production method of the same, method of shifting emission wavelength of phosphor, and light source and LED |
US7432647B2 (en) | 2004-07-09 | 2008-10-07 | Dowa Electronics Materials Co., Ltd. | Light source having phosphor including divalent trivalent and tetravalent elements |
US7884539B2 (en) | 2004-07-09 | 2011-02-08 | Dowa Electronics Materials Co., Ltd. | Light source having phosphor including divalent, trivalent and tetravalent elements |
US8441180B2 (en) | 2004-07-09 | 2013-05-14 | Dowa Electronics Materials Co., Ltd. | Light source having phosphor including divalent, trivalent and tetravalent elements |
US8066910B2 (en) | 2004-07-28 | 2011-11-29 | Dowa Electronics Materials Co., Ltd. | Phosphor and manufacturing method for the same, and light source |
US7476337B2 (en) | 2004-07-28 | 2009-01-13 | Dowa Electronics Materials Co., Ltd. | Phosphor and manufacturing method for the same, and light source |
USRE44162E1 (en) | 2004-08-02 | 2013-04-23 | Dowa Electronics Materials Co., Ltd. | Phosphor and phosphor film for electron beam excitation and color display apparatus using the same |
US7138756B2 (en) | 2004-08-02 | 2006-11-21 | Dowa Mining Co., Ltd. | Phosphor for electron beam excitation and color display device using the same |
USRE45640E1 (en) | 2004-08-02 | 2015-08-04 | Dowa Electronics Materials Co., Ltd. | Phosphor for electron beam excitation and color display device using the same |
US7527748B2 (en) | 2004-08-02 | 2009-05-05 | Dowa Electronics Materials Co., Ltd. | Phosphor and phosphor film for electron beam excitation and color display apparatus using the same |
US7476335B2 (en) | 2004-08-20 | 2009-01-13 | Dowa Electronics Materials Co., Ltd. | Phosphor and manufacturing method therefore, and light source using the phosphor |
USRE45502E1 (en) | 2004-08-20 | 2015-05-05 | Dowa Electronics Materials Co., Ltd. | Phosphor and manufacturing method therefore, and light source using the phosphor |
US8308981B2 (en) | 2004-08-27 | 2012-11-13 | Dowa Electronics Materials Co., Ltd. | Phosphor and manufacturing method for the same, and light source |
US7476338B2 (en) | 2004-08-27 | 2009-01-13 | Dowa Electronics Materials Co., Ltd. | Phosphor and manufacturing method for the same, and light source |
US7803286B2 (en) | 2004-08-27 | 2010-09-28 | Dowa Electronics Materials Co., Ltd. | Phosphor and manufacturing method for the same, and light source |
US7345418B2 (en) | 2004-08-27 | 2008-03-18 | Dowa Mining Co., Ltd. | Phosphor mixture and light emitting device using the same |
US7897064B2 (en) * | 2004-09-09 | 2011-03-01 | Showa Denko K.K. | Oxynitride-based fluorescent material and method for production thereof |
US7649309B2 (en) | 2004-10-21 | 2010-01-19 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Highly efficient stable oxynitride phosphor |
US7514860B2 (en) | 2004-10-28 | 2009-04-07 | Dowa Electronics Materials Co., Ltd. | Phosphor mixture and light emitting device |
US7901592B2 (en) * | 2005-02-17 | 2011-03-08 | Koninklijke Philips Electronics N.V. | Illumination system comprising a green-emitting ceramic luminescence converter |
US7477009B2 (en) | 2005-03-01 | 2009-01-13 | Dowa Electronics Materials Co., Ltd. | Phosphor mixture and light emitting device |
US7524437B2 (en) | 2005-03-04 | 2009-04-28 | Dowa Electronics Materials Co., Ltd. | Phosphor and manufacturing method of the same, and light emitting device using the phosphor |
US7443094B2 (en) | 2005-03-31 | 2008-10-28 | Dowa Electronics Materials Co., Ltd. | Phosphor and manufacturing method of the same, and light emitting device using the phosphor |
US7445730B2 (en) | 2005-03-31 | 2008-11-04 | Dowa Electronics Materials Co., Ltd. | Phosphor and manufacturing method of the same, and light emitting device using the phosphor |
US7476336B2 (en) | 2005-04-28 | 2009-01-13 | Dowa Electronics Materials Co., Ltd. | Phosphor and manufacturing method for the same, and light emitting device using the phosphor |
EP1895599A4 (en) * | 2005-06-15 | 2014-03-19 | Nichia Corp | LIGHT-EMITTING COMPONENT |
EP1895599A1 (en) * | 2005-06-15 | 2008-03-05 | Nichia Corporation | Light emitting device |
EP3565011A1 (en) * | 2005-06-15 | 2019-11-06 | Nichia Corporation | Light emitting device |
US7833436B2 (en) | 2006-02-02 | 2010-11-16 | Mitsubishi Chemical Corporation | Multinary oxynitride phosphor, and light emitting device, image display, illuminating device and phosphor-containing composition using the same, and multinary oxynitride |
EP2366755A2 (de) | 2006-02-22 | 2011-09-21 | Osram Gesellschaft mit Beschränkter Haftung | Leuchtstoff und Lichtquelle mit derartigem Leuchtstoff sowie Herstellverfahren für den Leuchtstoff |
US9109161B2 (en) * | 2006-02-22 | 2015-08-18 | OSRAM Geseilschaft mit beschrankter Haftung | Illuminant and light source containing the same, and method for producing said illuminant |
WO2009017206A1 (ja) | 2007-08-01 | 2009-02-05 | Mitsubishi Chemical Corporation | 蛍光体及びその製造方法、結晶性窒化珪素及びその製造方法、蛍光体含有組成物、並びに、該蛍光体を用いた発光装置、画像表示装置及び照明装置 |
CN102559173A (zh) * | 2011-12-27 | 2012-07-11 | 江苏博睿光电有限公司 | 核-表层梯度式氮氧化物荧光粉及制造方法和采用该荧光粉的发光器件 |
US9666767B2 (en) | 2012-07-25 | 2017-05-30 | National Institute For Materials Science | Fluorophore, method for producing same, light-emitting device using fluorophore, image display device, pigment, and ultraviolet absorbent |
JPWO2014119146A1 (ja) * | 2013-01-31 | 2017-01-26 | シャープ株式会社 | 発光装置の製造方法及び発光装置 |
JP2017509735A (ja) * | 2014-01-09 | 2017-04-06 | メルク パテント ゲゼルシャフト ミット ベシュレンクテル ハフツングMerck Patent Gesellschaft mit beschraenkter Haftung | ユーロピウムドープアルカリ土類金属シリコオキシナイトライドベースの蛍光体 |
CN105838371A (zh) * | 2016-04-27 | 2016-08-10 | 山东盈光新材料有限公司 | 一种led用氮氧化物荧光粉及制备方法 |
Also Published As
Publication number | Publication date |
---|---|
MY149573A (en) | 2013-09-13 |
EP2241608A3 (en) | 2011-02-16 |
US7794624B2 (en) | 2010-09-14 |
KR100982617B1 (ko) | 2010-09-15 |
HK1108710A1 (en) | 2008-05-16 |
EP2241607A2 (en) | 2010-10-20 |
EP1571194B1 (en) | 2012-12-12 |
KR20050062623A (ko) | 2005-06-23 |
AU2003273003A1 (en) | 2004-05-25 |
TW200419826A (en) | 2004-10-01 |
US7951307B2 (en) | 2011-05-31 |
EP2241608B1 (en) | 2016-01-06 |
EP1571194A1 (en) | 2005-09-07 |
KR20100046067A (ko) | 2010-05-04 |
HK1106268A1 (en) | 2008-03-07 |
TWI246203B (en) | 2005-12-21 |
US7951308B2 (en) | 2011-05-31 |
US20100289404A1 (en) | 2010-11-18 |
US20100289403A1 (en) | 2010-11-18 |
EP1571194A4 (en) | 2010-07-07 |
KR100993692B1 (ko) | 2010-11-10 |
US20100288973A1 (en) | 2010-11-18 |
EP2241607A3 (en) | 2011-02-16 |
US20060076883A1 (en) | 2006-04-13 |
HK1107574A1 (en) | 2008-04-11 |
EP2241607B1 (en) | 2013-03-06 |
EP2241608A2 (en) | 2010-10-20 |
US7951306B2 (en) | 2011-05-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4415548B2 (ja) | オキシ窒化物蛍光体を用いた発光装置 | |
WO2004039915A1 (ja) | 酸窒化物蛍光体及びその製造方法並びにその酸窒化物蛍光体を用いた発光装置 | |
JP4244653B2 (ja) | シリコンナイトライド系蛍光体及びそれを用いた発光装置 | |
KR101065522B1 (ko) | 발광 장치 | |
US20060038477A1 (en) | Nitride phosphor and production process thereof, and light emitting device | |
WO2006077740A1 (ja) | 窒化物蛍光体及びその製造方法並びに窒化物蛍光体を用いた発光装置 | |
JP4222059B2 (ja) | 発光装置 | |
JP2004210921A (ja) | オキシ窒化物蛍光体及びその製造方法並びにそれを用いた発光装置 | |
JP4214768B2 (ja) | 窒化物蛍光体及びそれを用いた発光装置 | |
JP4442101B2 (ja) | 酸窒化物蛍光体及びそれを用いた発光装置 | |
JP2005298721A (ja) | 酸窒化物蛍光体及びそれを用いた発光装置 | |
WO2006117984A1 (ja) | 窒化物蛍光体及びそれを用いた発光装置 | |
JP4218328B2 (ja) | 窒化物蛍光体及びそれを用いた発光装置 | |
JP4466446B2 (ja) | オキシ窒化物蛍光体を用いた発光装置 | |
JP4991027B2 (ja) | オキシ窒化物蛍光体及びそれを用いた発光装置 | |
JP4215046B2 (ja) | 窒化物蛍光体及びそれを用いた発光装置 | |
JP4215045B2 (ja) | 窒化物蛍光体及びそれを用いた発光装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS KE KG KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
ENP | Entry into the national phase |
Ref document number: 2006076883 Country of ref document: US Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10531085 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020057006594 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2003754118 Country of ref document: EP Ref document number: 20038A16488 Country of ref document: CN |
|
WWP | Wipo information: published in national office |
Ref document number: 1020057006594 Country of ref document: KR |
|
WWP | Wipo information: published in national office |
Ref document number: 2003754118 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 10531085 Country of ref document: US |